UK's #1 Tyre Size Check Service

Free Tyre Size Check for UK cars

Check the correct tyre size for any UK vehicle instantly. Get detailed tyre specifications and approved alternatives for safe driving.

Official DVLA Data
Instant Results
100,000+ Checks
Free Basic Check

What's Included in Our Tyre Size Check

Our comprehensive Tyre Size Check gives you all the information you need to make an informed decision.

Free

MOT Status & History

Check current MOT status, expiry date, and full MOT test history including advisories and failures.

Free

Tax Status

Verify road tax status and when it's due for renewal to avoid fines and penalties.

Premium

Mileage Verification

Track mileage history from MOT records to identify potential clocking or discrepancies.

Premium

Outstanding Finance

Check if there's any outstanding finance on the vehicle that could put your purchase at risk.

Premium

Write-Off Check

Find out if the vehicle has ever been written off by an insurance company due to damage.

Premium

Stolen Vehicle Check

Verify the vehicle isn't recorded as stolen on the Police National Computer.

How Our Tyre Size Check Works

1

Enter Registration

Simply enter the vehicle registration number in our search box. Works for any UK registered vehicle.

2

Get Instant Results

Within seconds, you'll receive a comprehensive report with all available vehicle history data.

3

Make Informed Decisions

Use the detailed information to negotiate better prices or avoid problematic vehicles entirely.

Why Choose Our Tyre Size Check Service

1

Official DVLA & DVSA Data

We pull data directly from official government sources including the DVLA and DVSA, ensuring accuracy and reliability.

2

Instant Results 24/7

Get your vehicle check results in seconds, any time of day or night. No waiting, no delays.

3

Comprehensive Coverage

We check over 50 data points including MOT history, tax status, mileage, finance, stolen records, and more.

4

AI-Powered Insights

Our intelligent analysis highlights potential issues and provides clear recommendations to help you decide.

What Is the Correct Tyre Size for My Vehicle and How Do I Check?

How to Find the Correct Tyre Size for Your Vehicle

Using the correct tyre size is essential for safe driving and maintaining vehicle performance. Your car's correct tyre size isn't just a preference – it affects safety, fuel efficiency, and whether your vehicle passes its MOT. The quickest way to find your correct tyre size is by checking your registration number on an online car check service, which instantly provides the manufacturer-specified tyre size. Alternatively, you'll find tyre size information on the driver's door jamb, inside your fuel filler flap, or in your vehicle handbook.

Reading Tyre Size Codes Explained

Tyre markings can look confusing, but they follow a standardised format. A typical tyre size might read "205/55R16 91V". Here's what each number means:
  • 205 - Tyre width in millimetres
  • 55 - Aspect ratio (sidewall height as a percentage of width)
  • R - Radial tyre construction
  • 16 - Wheel diameter in inches
  • 91 - Load index (maximum weight the tyre can carry)
  • V - Speed rating (maximum safe speed)
Always match all these specifications exactly. Using tyres with different sizes, load indices, or speed ratings can affect handling, increase fuel consumption, and invalidate your insurance.

Why Correct Tyres Matter for Safety and MOT

Installing incorrect tyres is dangerous and illegal. Tyres that don't match your vehicle's specifications can cause poor handling, longer braking distances, and increased risk of blowouts. During your MOT test, the examiner checks that your tyres match the manufacturer's specification. Using the wrong size is an automatic MOT failure. Furthermore, your insurance may reject claims if you've been driving on non-specified tyres, leaving you financially vulnerable in an accident.

Run-Flat Tyres vs Standard Tyres

Some vehicles come equipped with run-flat tyres that allow you to continue driving even after a puncture. If your car specifies run-flat tyres, you must replace them with run-flat alternatives – standard tyres won't provide the same safety benefit. Run-flat tyres are marked with "ROF" on the sidewall. Your tyre size check should confirm whether your vehicle requires run-flat tyres to maintain the safety features designed for your car.

Winter Tyres and Seasonal Considerations

Whilst not legally required in the UK, winter tyres are recommended during cold months (November to March) as they provide superior grip in temperatures below 7°C. Winter tyres must still match your vehicle's specified size and speed rating. Many drivers use winter tyres on separate wheels rather than changing tyres seasonally. Check your registration to confirm your vehicle's correct tyre specifications before purchasing winter alternatives.

Frequently Asked Questions About Tyre Size Check

Our tyre size check instantly provides the manufacturer-approved tyre specifications for any UK vehicle, including approved alternatives and speed ratings.

Tyre markings show width, aspect ratio, wheel diameter, load index, and speed rating. For example, 205/55R16 91H indicates the tyre's dimensions and performance capabilities.

You can only use manufacturer-approved alternative sizes; using non-approved sizes is unsafe and illegal. Our check identifies all approved options for your specific vehicle.

Using incorrect tyre sizes affects handling, fuel consumption, speedometer accuracy, and safety. It may also invalidate your insurance and breach MOT requirements.

Tyre size information is on the driver's door jamb, vehicle manual, and registration papers. Our instant check retrieves all approved specifications for your UK vehicle.

Our tyre size check is instantly available at an affordable price, providing complete tyre specifications and approved alternatives for safe replacement.

Check Any Vehicle Now

Enter any UK registration number to get your free vehicle check instantly.

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