Leading Speedometer Calibration Companies

Speedometer calibration is the process of adjusting a speedometer to ensure that it accurately displays the speed of a vehicle. The general purpose of speedometer calibration is to improve the accuracy and reliability of speed measurement, which enhances safety on the road and ensures compliance with legal requirements and regulations. Read More…

Speedometer Calibration Speedometer calibration is the process of adjusting speedometers to match industry standards of precision for measurements of speed in vehicles. Accuracy of a speedometer is important, both in order to help car owners drive safely and because it directly works with the car's odometer to measure distance.

Custom Calibration specializes in on-site and laboratory calibration which will keep costly equipment downtime to a minimum and maximize your overall productivity. We have over 30 years of experience providing calibration services for mechanical, dimensional, scale, torque, humidity, and many more applications. Our company’s mission is to achieve total customer satisfaction by providing prompt, ...

Custom Calibration Inc. $$$

ISO/IEC 17025:2017 & ANSI/NCSL Z540.3 Accredited Laboratory. Electronic, dimensional, physical and thermodynamic calibrations performed onsite and in our lab. Professional ASQ Certified Calibration Technicians. We support the manufacturing and service sectors including; aerospace, automotive, chemical, electronic equipment, energy, food, industrial, machinery, medical, metal, military, nuclear,...

Calibration Laboratory, LLC $$$

Continental Testing specializes in calibration, repairs, and testing services for the aviation industry. We have dimensional, electrical, lighting, physical, chemistry, and avionics testing capabilities. We offer on-site testing in at least 30 states and provide expert services in aviation, railroad, plumbing, electronics, tool & die, and construction sectors.

Continental Testing $$$

At Micro Quality Calibration we are considered the first western commercial laboratory designed for precision measurements. Since 1978, our calibration laboratory & repair facility has done instrument calibration & equipment calibration. Calibration is done under strict controls. A2LA ISO/IEC 17025:2017 certified. We are successful because we provide the best service and are committed to...

Micro Quality Calibration Inc. $$$

In a world where precision is paramount, Constellation PowerLabs stands as a beacon of trust, offering calibration services that transcend mere measurements. We are a partner in progress, working hand-in-hand with organizations to enhance their operations through the lens of accuracy, quality, and reliability. When you choose Constellation PowerLabs, you choose a steadfast commitment to...

Constellation PowerLabs $$$

Sierra provides accurate calibration services for mass flow meters and controllers, insertion thermal flow meters, vortex, and ultrasonic flow meters. With more than 40 years of expertise in gas, air, or liquid flow calibration, you can count on our team to make sure your flow meter operates with efficiency and pinpoint accuracy. We believe in providing personalized and customized service, and...

Sierra Instruments $$$

At ENI Labs, we specialize in providing comprehensive calibration services tailored to meet the diverse needs of our clientele. With years of experience and expertise in the industry, we have established ourselves as a trusted leader in calibration, renowned for our commitment to excellence, accuracy, and customer satisfaction. Our calibration services cover a wide range of equipment and...

ENI Labs $$$
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Process of Speedometer Calibration

The process of speedometer calibration involves several steps. First, the speedometer is tested to determine its current accuracy. This is typically done by comparing the reading on the speedometer to the actual speed of the vehicle using a GPS or other calibrated device. Once the current accuracy is determined, the speedometer is adjusted by either changing the speedometer gear or adjusting the electronic settings in the vehicle's computer. After the adjustment is made, the speedometer is tested again to ensure that it is now accurate.

Variations in the Process Based on Specific Applications

There are variations in the process of speedometer calibration based on specific applications. For example, the process for calibrating a speedometer in an airplane may differ from the process for calibrating a speedometer in a car. In addition, the process may differ based on the type of speedometer being calibrated, such as a mechanical or electronic speedometer. A mechanical speedometer is a device that uses a cable connected to the wheels to measure and display the vehicle's speed on a dial. An electronic speedometer, on the other hand, is a device that uses a sensor to measure the speed of the vehicle's wheels and displays the information electronically on a digital screen. Based on these different device designs, it is easy to see why their calibration processes would differ.

Considerations Regarding Speedometer Calibration

There are some considerations regarding speedometer calibration. Factors such as tire size, gear ratio, and transmission type can all affect the accuracy of the calibration. Another limitation is that the accuracy of the calibration can degrade over time, especially if the vehicle experiences rough use or frequent exposure to harsh environmental conditions. In such cases, regular calibration checks may be necessary to ensure ongoing accuracy.

Benefits of Speedometer Calibration

Despite these considerations, the benefits of speedometer calibration are significant. Accurate speed measurement enhances safety on the road by reducing the risk of accidents. It also ensures compliance with legal requirements and regulations, which can help prevent fines and other penalties. Additionally, accurate speed measurement can improve fuel efficiency by allowing drivers to optimize their speed and reduce unnecessary acceleration.

Applications of Speedometer Calibration

Speedometer calibration has many applications across a range of industries. In the automotive industry, calibration is critical for ensuring that vehicles meet legal requirements and regulations. In the aviation industry, calibration is essential for maintaining safe operations and ensuring that planes stay within their designated airspeed limits. In the marine industry, calibration is important for ensuring that boats and ships stay within safe operating ranges. In the railway industry, calibration is necessary for maintaining safe operations and preventing accidents. Additionally, speedometer calibration has applications in sports and recreation, such as in the calibration of speedometers on bicycles and other athletic equipment.

Equipment and Personnel Needed for Speedometer Calibration

The equipment needed for speedometer calibration varies depending on the type of speedometer being calibrated. Mechanical speedometers may require specific gears or cables, while electronic speedometers may require specialized software or diagnostic tools. Personnel performing speedometer calibration should be qualified and trained in the specific procedures and techniques required for the type of speedometer being calibrated.

In-House Calibration vs. Calibration Services

Speedometer calibration can be performed in-house or by a service provider. In-house calibration offers the advantage of greater control over the process, as well as cost savings over time for organizations that have the necessary equipment and personnel available. However, in-house calibration requires specialized equipment and personnel, which may not be practical or feasible for all organizations. Calibration services, on the other hand, offer other benefits to consider, including:


Service providers who specialize in speedometer calibration are likely to have a higher level of expertise and experience than in-house personnel who may have multiple job responsibilities.

Time Savings

Outsourcing the calibration process can free up in-house personnel to focus on other important tasks and projects.


Service providers may have access to specialized equipment that is not available in-house, which can improve the accuracy of the calibration.


Many industries have strict regulations and requirements for speedometer calibration. Outsourcing to a qualified provider can ensure compliance and avoid potential penalties or fines.

Cost Savings

While outsourcing may have a higher upfront cost, it can be more cost-effective over time for organizations that do not have the necessary equipment or personnel available. Additionally, outsourcing calibration services can save time by allowing personnel to focus on other important tasks, which can also lead to cost savings.

Overall, outsourcing speedometer calibration can be a smart choice for organizations that prioritize accuracy, compliance, and cost-effectiveness.

Choosing the Right Speedometer Calibration Service

To ensure you have the most positive outcome when selecting a speedometer calibration service, it is important to compare several companies using our directory of speedometer calibration services. Each speedometer calibration service has a business profile page highlighting their areas of experience and capabilities, along with a contact form to directly communicate with the company for more information or to request a quote. Review each speedometer calibration business website using our patented website previewer to quickly learn what each company specializes in. Then, use our simple RFQ form to contact multiple speedometer calibration companies with the same form.

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