{"id":96772,"date":"2023-11-23T17:33:48","date_gmt":"2023-11-24T01:33:48","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=96772"},"modified":"2023-12-28T23:09:46","modified_gmt":"2023-12-29T07:09:46","slug":"speedometer-calibration-explained-common-questions-answered","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/","title":{"rendered":"Speedometer Calibration Explained: Common Questions Answered"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_07af3b-41 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_07af3b-41 > .kt-inside-inner-col,.kadence-column_07af3b-41 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_07af3b-41 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_07af3b-41 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_07af3b-41 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_07af3b-41 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_07af3b-41{position:relative;}@media all and (max-width: 1024px){.kadence-column_07af3b-41 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_07af3b-41 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_07af3b-41 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-832b65  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-6bc4aa\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_1aef83-c8, .wp-block-kadence-advancedheading.kt-adv-heading_1aef83-c8[data-kb-block=\"kb-adv-heading_1aef83-c8\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_1aef83-c8 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_1aef83-c8[data-kb-block=\"kb-adv-heading_1aef83-c8\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_1aef83-c8 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_1aef83-c8[data-kb-block=\"kb-adv-heading_1aef83-c8\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_1aef83-c8 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_1aef83-c8\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>A speedometer calibration test is a procedure that&rsquo;s meant to assess the accuracy of your ride&rsquo;s speedometer.<\/li><li>An inaccurate speedometer may need to be recalibrated or replaced.<\/li><li>Some factors that can affect speedometer readings include speedometer deterioration and collision-related damage.<\/li><li>You may also need to recalibrate your speedometer if you buy larger aftermarket tires.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">A <a href=\"https:\/\/www.carparts.com\/speedometer\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"speedometer\">speedometer<\/a> measures the speed of your vehicle. It provides real-time feedback to the driver through the vehicle&rsquo;s dashboard, allowing them to maintain legal speed while traveling. Also, data regarding vehicle speed is also important to the vehicle&rsquo;s on board computers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Your vehicle&rsquo;s speedometer needs to be calibrated properly to give accurate data output.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is a Speedometer Calibration Test?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A speedometer calibration test is a procedure that&rsquo;s meant to assess the accuracy of your ride&rsquo;s speedometer. The test is performed by using a dynamometer to measure your vehicle&rsquo;s actual speed. The results will then be compared to the speed displayed on your dashboard.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It&rsquo;s important to note that most repair shops can&rsquo;t perform this procedure. That&rsquo;s because you&rsquo;ll need specialized equipment and computers to do this. Make sure to consult a professional before doing a speedometer calibration test.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>It&rsquo;s important to note that most repair shops can&rsquo;t perform this procedure. That&rsquo;s because you&rsquo;ll need specialized equipment and computers to do this.<\/p><cite><em>&ndash;<\/em><a href=\"https:\/\/www.carparts.com\/blog\/author\/anthonyharlin\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Anthony Harlin, ASE Certified Master Automobile Technician\">Anthony Harlin, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">What Is a Speedometer Calibration Report?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A report will be printed out once the speed calibration testing is done. This report will state if your ride&rsquo;s speedometer is off. It will contain details about the discrepancy between the speedometer speed and the actual speed of your vehicle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Recalibrating Your Speedometer<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If your speedometer is deemed inaccurate, you&rsquo;ll need to have it recalibrated. A mechanic will usually adjust gear ratios and look into your vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/blog\/euro-metric-and-p-metric-tire-sizes-explained\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"tire size\">tire size<\/a>. Certain electrical components may also need to be adjusted so that the speedometer reading will be aligned with your ride&rsquo;s actual speed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There are plenty of videos online on how to calibrate a speedometer. However, if you&rsquo;re not a seasoned DIYer, it&rsquo;s best to let a trusted mechanic do it for you.<\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Factors That Can Affect Speedometer Readings<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Many factors can affect your speedometer&rsquo;s accuracy. Let&rsquo;s discuss each one in detail:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Speedometer Deterioration<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Like any other device installed on your vehicle, your <a href=\"https:\/\/www.carparts.com\/blog\/five-reasons-why-your-speedometer-isnt-working\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"speedometer may become faulty\">speedometer may become faulty<\/a> over time. For example, the sensors inside a mechanical speedometer can malfunction, causing inaccurate speedometer readings. Faulty connections within the system can also lead to erroneous readings.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In order vehicles, a cable is used to link the transmission to the instrument cluster. This cable can also wear out as the vehicle gains mileage.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Road Accidents<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An accident or a collision can affect your vehicle&rsquo;s health in so many ways. If you crashed your car recently, make sure to get your vehicle sensors and electrical components checked. Even if it was just a minor collision, it can cause one or more critical sensors to malfunction.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Aftermarket Rims and Tires<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Is your speedometer off after installing new tires? This is perfectly normal. You&rsquo;ll need to have your speedometer recalibrated.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Speedometers are calibrated according to the <a href=\"https:\/\/www.carparts.com\/blog\/what-size-wheels-fit-my-car-a-wheel-fitment-guide-for-beginners\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"size of your stock wheels\">size of your stock wheels<\/a>. So if you <a href=\"https:\/\/www.carparts.com\/blog\/are-wider-tires-better-than-narrow-tires\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"switch to larger tires\">switch to larger tires<\/a>, you&rsquo;ll need to make some adjustments. The speed of your wheels can vary depending on the size of your tires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In some modern vehicles, you can make adjustments in the computer settings using a bi directional scan tool.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Worn Tires<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.carparts.com\/blog\/how-to-check-tire-tread-and-tire-pressure\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Worn tires\">Worn tires<\/a> can also affect your speedometer reading. That&rsquo;s because low tire pressure alters how your wheels rotate. Regularly <a href=\"https:\/\/www.carparts.com\/blog\/putting-air-in-your-tires-are-you-doing-it-right\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check your tire pressure\">check your tire pressure<\/a> to avoid speedometer inaccuracies and prevent accidents on the road.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why Is It Important to Get Accurate Speedometer Readings?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-1024x636.jpg\" alt=\"speedometer calibration\" class=\"wp-image-96774\" width=\"1024\" height=\"636\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-1024x636.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-300x186.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-768x477.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-1536x954.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-150x93.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Aside from getting a traffic ticket and paying fines, you&rsquo;re also risking your safety by not fixing an inaccurate speedometer.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">As a driver, you need to know your ride&rsquo;s actual speed because it can help you adhere to speed limits. Speeding, although unintentional, can still earn you a traffic ticket.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aside from getting a traffic ticket and paying fines, you&rsquo;re also risking your safety by not fixing an inaccurate speedometer. Exceeding safe driving speeds can lead to accidents while on the road.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Speedometer Readings as Evidence In Court<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Another reason why accurate speedometer readings are important is the fact that they may be used as evidence in court&mdash;especially if you&rsquo;ve been charged with reckless driving. In some cases, inaccurate speedometer readings can be used as a mitigating factor in determining whether a driver is guilty or not.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, the results of a speedometer calibration test can still be questioned by experts. The judge will also consider supplementary evidence like witness testimonies and video recordings.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What&rsquo;s the Difference Between an Odometer and a Speedometer?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Although these two devices are related to each other, they function differently. A speedometer measures the actual speed of your vehicle. Meanwhile, an odometer measures the overall distance traveled by a vehicle. It&rsquo;s also important to note that changing an odometer reading is against the law.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Will a Speedometer Calibration Cost?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Expect to spend around $50 to $100 for a speedometer calibration.&nbsp; The actual price will depend on factors like the make and model of your vehicle and the labor costs in your area.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Does a Speedometer Replacement Cost?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If it&rsquo;s not an external issue, and your actual speedometer is faulty, you&rsquo;ll have to get a speedometer replacement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In most modern vehicles, the speedometer is integrated into the instrument cluster. It&rsquo;s repaired by a specialized shop that works on instrument clusters. It can also be replaced as an assembly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Expect to shell out anywhere between $50 and $200 for the speedometer. Some speedometers can be priced higher depending on the brand you choose and the make and model of your vehicle. Mechanics usually charge anywhere between $50 and $100 for this type of replacement.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Remember that these prices are just estimates. You&rsquo;ll have to consider taxes and other charges as well.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Is It Okay to Use My Phone as a&nbsp; Speedometer Substitute?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">There are several mobile apps designed to work as a portable speedometer. Some of these apps can work offline, so you don&rsquo;t have to be connected to wifi all the time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, nothing can replace your actual vehicle speedometer. Your phone can die anytime, and it may leave you clueless about your actual speed while traveling.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Instead of using your phone, it&rsquo;s more reliable to use a plug-in device that connects to your OBD2 port, capable of displaying various computer parameters on the screen. This solution is particularly useful if your conventional speedometer is not functioning correctly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can use your phone as a temporary substitute in emergencies. However, you&rsquo;ll still have to recalibrate or fix your speedometer to stay safe while on the road.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>A speedometer measures the speed of your vehicle. It provides real-time feedback to the driver through the vehicle&rsquo;s dashboard, allowing&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":96773,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[52,3743],"tags":[156],"ppma_author":[2607,3742],"class_list":["post-96772","post","type-post","status-publish","format-standard","has-post-thumbnail","category-diy","category-maintenance","tag-speedometer","entry"],"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Speedometer Calibration Explained: Common Questions Answered - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"A speedometer calibration test is done by a mechanic to measure the accuracy of your ride\u2019s speedometer. Learn more about it.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Speedometer Calibration Explained: Common Questions Answered - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"A speedometer calibration test is done by a mechanic to measure the accuracy of your ride\u2019s speedometer. Learn more about it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2023-11-24T01:33:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-12-29T07:09:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-explained.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1333\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"Anthony Harlin\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"Tony Harlin is a Master Gas and Diesel Diagnostic Technician with over 18 years of experience. He works full-time at a large independent automotive shop as a driveability and repair technician working on all types of vehicles with a focus on diesels. ASE certifications include A1-A9, L1 and L2, as well as X1.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/anthonyharlin\\\/\",\"sameAs\":\"https:\\\/\\\/youtube.com\\\/c\\\/nutsboltswithtone, https:\\\/\\\/www.instagram.com\\\/nuts_n_bolts_with_tone\\\/, https:\\\/\\\/vm.tiktok.com\\\/ZMeESTrYT\\\/\"}],\"headline\":\"Speedometer Calibration Explained: Common Questions Answered\",\"datePublished\":\"2023-11-24T01:33:48+00:00\",\"dateModified\":\"2023-12-29T07:09:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/\"},\"wordCount\":1171,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/speedometer-calibration-explained.jpg\",\"keywords\":[\"speedometer\"],\"articleSection\":[\"DIY\",\"Maintenance\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/\",\"name\":\"Speedometer Calibration Explained: Common Questions Answered - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/speedometer-calibration-explained.jpg\",\"datePublished\":\"2023-11-24T01:33:48+00:00\",\"dateModified\":\"2023-12-29T07:09:46+00:00\",\"description\":\"A speedometer calibration test is done by a mechanic to measure the accuracy of your ride\u2019s speedometer. Learn more about it.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/speedometer-calibration-explained.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/11\\\/speedometer-calibration-explained.jpg\",\"width\":2000,\"height\":1333,\"caption\":\"speedometer calibration explained\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/speedometer-calibration-explained-common-questions-answered\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Speedometer Calibration Explained: Common Questions Answered - In The Garage with CarParts.com","description":"A speedometer calibration test is done by a mechanic to measure the accuracy of your ride\u2019s speedometer. Learn more about it.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/","og_locale":"en_US","og_type":"article","og_title":"Speedometer Calibration Explained: Common Questions Answered - In The Garage with CarParts.com","og_description":"A speedometer calibration test is done by a mechanic to measure the accuracy of your ride\u2019s speedometer. Learn more about it.","og_url":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2023-11-24T01:33:48+00:00","article_modified_time":"2023-12-29T07:09:46+00:00","og_image":[{"width":2000,"height":1333,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-explained.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/"},"author":[{"@type":"Person","$id":"4","name":"CarParts.com Research Team","jobTitle":"Expert Automotive Writer","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","sameAs":"https:\/\/www.facebook.com\/carpartscom, https:\/\/twitter.com\/CarPartscom, https:\/\/www.youtube.com\/@CarPartscomOfficial\/, https:\/\/www.instagram.com\/carpartscom\/"},{"@type":"Person","$id":"4","name":"Anthony Harlin","jobTitle":"ASE Master Automobile Technician","description":"Tony Harlin is a Master Gas and Diesel Diagnostic Technician with over 18 years of experience. He works full-time at a large independent automotive shop as a driveability and repair technician working on all types of vehicles with a focus on diesels. ASE certifications include A1-A9, L1 and L2, as well as X1.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/anthonyharlin\/","sameAs":"https:\/\/youtube.com\/c\/nutsboltswithtone, https:\/\/www.instagram.com\/nuts_n_bolts_with_tone\/, https:\/\/vm.tiktok.com\/ZMeESTrYT\/"}],"headline":"Speedometer Calibration Explained: Common Questions Answered","datePublished":"2023-11-24T01:33:48+00:00","dateModified":"2023-12-29T07:09:46+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/"},"wordCount":1171,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-explained.jpg","keywords":["speedometer"],"articleSection":["DIY","Maintenance"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/","url":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/","name":"Speedometer Calibration Explained: Common Questions Answered - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-explained.jpg","datePublished":"2023-11-24T01:33:48+00:00","dateModified":"2023-12-29T07:09:46+00:00","description":"A speedometer calibration test is done by a mechanic to measure the accuracy of your ride\u2019s speedometer. Learn more about it.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-explained.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-explained.jpg","width":2000,"height":1333,"caption":"speedometer calibration explained"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-explained.jpg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/11\/speedometer-calibration-explained.jpg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/speedometer-calibration-explained-common-questions-answered\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"author_category":"","user_url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","last_name":"","first_name":"CarParts.com Research Team","job_title":"","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust."},{"term_id":3742,"user_id":1647,"is_guest":0,"slug":"anthonyharlin","display_name":"Anthony Harlin, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/anthony-harlin.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/04\/anthony-harlin.png"},"author_category":"","user_url":"https:\/\/www.carparts.com\/blog\/author\/anthonyharlin\/","last_name":"Harlin","first_name":"Anthony","job_title":"ASE Certified Master Automobile Technician","description":"Tony Harlin is a Master Gas and Diesel Diagnostic Technician with over 18 years of experience. He works full-time at a large independent automotive shop as a driveability and repair technician working on all types of vehicles with a focus on diesels. ASE certifications include A1-A9, L1 and L2, as well as X1.\r\n\r\nTony has a YouTube channel, \u201cNuts &amp; Bolts with Tone,\u201d with over 25,000 subscribers, devoted to automotive troubleshooting, repairs as well as tool demos and reviews. When not working on cars, Tony enjoys spending time with his three sons and wife in Sacramento, California.\r\n\r\n<strong>Credentials:<\/strong>\r\n\r\n<ul class=\"author-list\">\r\n<li><p>ASE A1-A9<\/p><\/li>\r\n<li><p>L1 &amp; L2 Advance Engine Performance Gas &amp; Diesel X1 Exhaust Systems<\/p><\/li>\r\n<\/ul>"}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/96772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=96772"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/96772\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/96773"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=96772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=96772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=96772"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=96772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}