Tire Type
P = Passenger car, LT = Light truck. No letter usually means a European metric tire.
TIRE SIZE GUIDE
HOW TO FIND YOUR TIRE SIZE
Your tire size is printed right on the tire. Learn where to look, what every number means, and shop the perfect fit in minutes.
STEP 01
Read the Code
Every tire has the same pattern of numbers and letters. Hover or tap each part to see what it means.
/
Tire Width
Width of the tire from sidewall to sidewall, in millimetres.
Aspect Ratio
Sidewall height as a % of the width. Here the sidewall is 65% of 225 mm.
Construction
R = Radial, used on almost every modern tire. ZR marks some high-speed tires.
Rim Diameter
The wheel size this tire fits, in inches. It must match your wheel exactly.
Load Index
How much weight each tire can carry. 94 = 670 kg per tire.
Speed Rating
The maximum safe speed. H = 210 km/h. Match or exceed your original rating.
STEP 02
Where to Look
You'll find your size in any of these four places — no tools needed.
Tire Sidewall
Look at the side of your current tire. The size is moulded into the rubber, usually after the brand and model name.
Most accurateDriver's Door Jamb
Open the driver's door and check the sticker on the frame. It lists the original tire size and recommended pressure.
Factory sizeOwner's Manual
The tire and loading section of your vehicle manual lists every approved size for your model and trim.
All optionsFuel Filler Door
Some vehicles print the tire size and pressure chart on the inside of the fuel door.
Quick checkIf your tires were changed by a previous owner, the sidewall and the door sticker may differ. When in doubt, go with the door sticker or ask our team.
STEP 03
Decode Your Size
Type the size from your tire and we'll turn it into real measurements — then show you tires that fit.
Try:
That doesn't look like a tire size. Use the format 225/65R17.
Your size
225/65R17 94H
- Tire width
- 225 mm
- Sidewall height
- 146 mm
- Rim diameter
- 17 in
- Overall diameter
- 724 mm
- Load per tire
- 670 kg
- Max speed
- 210 km/h
Passenger / metric radial tire
Shop 225/65R17 tiresQUICK REFERENCE
Speed Ratings & Load Index
Speed Ratings
| Rating | Max speed | Typical use |
|---|---|---|
| Q | 160 km/h | Winter, light truck |
| S | 180 km/h | Family cars, vans |
| T | 190 km/h | Family cars, SUVs |
| H | 210 km/h | Sport sedans |
| V | 240 km/h | Sport & performance |
| W | 270 km/h | High performance |
| Y | 300 km/h | Supercars |
Load Index
| Index | Per tire | Index | Per tire |
|---|---|---|---|
| 85 | 515 kg | 98 | 750 kg |
| 88 | 560 kg | 100 | 800 kg |
| 91 | 615 kg | 102 | 850 kg |
| 94 | 670 kg | 105 | 925 kg |
| 95 | 690 kg | 110 | 1060 kg |
| 96 | 710 kg | 115 | 1215 kg |
| 97 | 730 kg | 121 | 1450 kg |
GOOD TO KNOW
Tire Size FAQs
Still unsure? Our tire experts are happy to help you choose.
Ask an ExpertCan I fit a different size than my current tires?
Only sizes approved for your vehicle. A new size should keep the overall diameter within about 3% of the original so your speedometer, ABS and stability control stay accurate. Check your owner's manual or ask us first.
Do all four tires need to be the same size?
Usually yes. Some performance cars use wider tires at the rear — this is called a staggered setup, and the door sticker will list both sizes.
Can I use a lower load index or speed rating?
No. Always match or exceed the load index and speed rating shown on your door sticker. A lower rating can be unsafe and may affect your insurance.
How do I tell how old my tires are?
Find the DOT code on the sidewall. The last four digits are the week and year it was made — 2321 means the 23rd week of 2021. Most makers recommend replacing tires after 6–10 years, whatever the tread.
When should I replace my tires?
When the tread reaches the wear bars (1.6 mm, the legal minimum in most places), or earlier for wet and winter safety — around 3 mm is a good rule. Also replace tires with cracks, bulges or damage to the sidewall.
FOUND YOUR SIZE?
Shop tires that fit perfectly
Compare top brands and the best prices for your exact size.