Tires are an essential part of any vehicle, and it is important to make sure that they are the right size for your car. The wrong size tires can affect the performance of your vehicle and can also be dangerous.

Here are the steps on how to measure tire size:

  • Gather your tools. You will need a tape measure and a pencil.

Gather your tools

  • Place Tire: Find a flat surface to measure your tires on.

Place Tire

  • Measure the width of the tire. Place the tape measure across the widest part of the tire.

Measure the width of the tire

  • Measure the height of the tire. Place the tape measure from the bead to the tread.

Measure the height of the tire

  • Write down your measurements of the tire on paper.

tire measuremunt

Once you have your measurements, you can use a tire size chart to find the right tires for your car. Be sure to compare your measurements to the size chart of the specific tire you want, as different brands and models may have different sizing standards.

Here are some additional tips for measuring tire size:

  • Make sure that the tire is fully inflated when you measure it.
  • Keep the tape measure tight enough.
  • If you are measuring a used tire, ensure it is not worn out.

By following these steps, you can measure tire size accurately, ensure you get the right size tires for your car, and then buy new tires.

Tyre Sizing Chart

Tire Size DesignationOD (mm)OD (in)SW (mm)SW (in)ARSH (mm)SH (in)CI (mm)CI (in)RE (km)RE (mile)

145/80R10 486 19.1 145 5.7 80 116 4.6 1526 60.1 655.3 1054.2

155/80R10 502 19.8 155 6.1 80 124 4.9 1576 62.1 634.5 1020.3

165/70R10 485 19.1 165 6.5 70 116 4.5 1523 60.0 656.6 1056.0


Please note that the tire/wheel manufacturer should verify the chart data. This is for informative purposes only. The Dr. measurement is not responsible for any errors that may arise with its usage.

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Here are some FAQs about measuring tire size:

What is the tire size?

Tire size is a measurement that indicates a tire’s width, height, and diameter. It is essential to know the tire size of your car so that you can buy the right replacement tires.

How do I find the tire size of my car?

Your car’s tire size is usually listed on the sidewall of the tire. It combines numbers and letters, such as 205/55R16. The first number is the width of the tire in millimeters. The second number is the tire’s height as a percentage of its width. The letter R stands for radial ply, the type of construction used for most modern tires. The last number is the diameter of the tire rim in inches.

What if I can’t find the tire size on my car?

If you can’t find the tire size on your car, you can usually find it in your car’s owner’s manual. You can also contact your car’s manufacturer or a local tire shop.

Can I mix and match tire sizes on my car?

It is not recommended to mix and match tire sizes on your car. This can affect the handling and performance of your vehicle, and it can also be dangerous.

What is the difference between metric and imperial tire sizes?

Metric tire sizes are the most common type of tire size worldwide. They are measured in millimeters. Imperial tire sizes are less standard but still used in some countries. They are measured in inches.

How often should I check my tire size?

You should check your tire size every time you get new tires. You should also check your tire size if you have ever changed the suspension or wheels on your car.

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