Wheel Fitment API

The Wheel Fitment API allows programmatic access to the database of www.wheel-size.com and its services.

Use this API to retrieve information about vehicle fitment database for rims and tires, including OE and option fitments, and plus/minus sizing fitment information. A variety of country and language specific options are available. The coverage of fitment data for vehicles manufactured since 2000 is nearly 100%.

The information about fitment data is updated on a daily basis.

Getting started

First thing you need is your API user key. Create the free account, if you don’t have one yet. No credit card required.

Client SDKs (API Client Libraries):

We provide clients for multiple programming languages. These helper libraries make the integration of our service into your web or application faster and easier.

All the clients are in one-to-one correspondence to the API.
Currently we provide clients for the following languages:

Feel free to use our OpenAPI-defined API and Swagger Codegen to generate client for your programming language

Pick your plan



  • Support
  • For production




  • 30000 hits per day



  • Premium Support
  • For production




  • 150000 hits per day

Still need more?

For large enterprise companies, we can also deliver bulk wheel size data in the format you need.

We can arrange for a customized commercial license that allows your business to host API service and data on your own servers with regular updates.

Contact Us


What data does Wheel-Size.com provide?
Wheel-Size.com provides frequently maintained data with over 100 car makes including 3200+ models for 12 global markets.

We have a dedicated team working on adding new data and improving the accuracy daily.
What does Wheel Fitment API provide?
Wheel Fitment API provides the REST-ful interface for you to access our data.

What is considered an API request?
We treats a request as anytime you call an API. Depending on your Developer plan, your account will limit the number of requests you can make in a month.
Do you store any credit card information in your systems?
No. All credit card activity and information is handled by our third-party provider, Paypal. See Paypal`s Terms and Services.

How do I cancel my subscription?
You can cancel your account anytime by contacting our Support Team or do it in your Paypal account.

What credit cards can I use with PayPal?
You can use Visa, MasterCard, Discover, or American Express to make PayPal payments. Another fast and easy option is paying with your bank account.

How frequently am I billed?
All subscription plans are billed on a yearly basis.
Can I test Wheel Fitment API before buying it?
Yes. Test your application by creating a Sandbox account. The sandbox functions like our production environment.

I have some problems with selecting cars from our website through your api. Sometimes they just timeout for cars like BMW and Audi.
An easy and convenient way to reduce the bandwidth and response time needed for each request is to enable gzip compression. In order to receive a gzip-encoded response you must do the following thing: Set an Accept-Encoding header:
Accept-Encoding: gzip

Examples of usage

Our website, widgets, Wheel Size Calculator, iOS and Android mobile apps are a good example of how our API works.

Run your requests

$ curl -v -X GET "https://api.wheel-size.com/v1/"