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Tires by Size Guide

BB Wheels Tire Size Guide

Shop Tires by Size & Rim Diameter

Shop tires by size and rim diameter for cars, trucks, SUVs, Jeeps, trailers, commercial vehicles, ATV/UTV machines, lifted builds, daily drivers, and custom wheel and tire setups. Browse verified metric and flotation tire sizes to find the right replacement tires faster.

Start With the Rim Diameter

Start with the wheel diameter listed after the R in a metric tire size. For example, 275/55R20 belongs with 20 inch tires because it fits a 20 inch wheel. This helps shoppers quickly narrow the right tire category before comparing width, height, and load details.

Use the Tire Size Shown on the Vehicle

Match the tire size shown on the sidewall, owner information, or current tire setup. If you are changing tire size, compare overall diameter, section width, sidewall height, clearance, speedometer effect, load rating, and wheel fitment before buying replacement tires.

How to Find Your Tire Size

Use the tire size printed on your current tire sidewall to shop the right replacement tires. This section supports shoppers who are browsing by tire size, comparing replacement options, or learning how to read metric and flotation tire sizes.

How to find your tire size on the sidewall

What to Look For on the Sidewall

  • Metric tire sizes usually look like 275/55R20.
  • Flotation tire sizes usually look like 35x12.50R20.
  • The number after the R is the wheel diameter the tire fits.
  • The load index and speed rating help confirm the tire meets the vehicle's driving needs.
  • If you are changing tire size, compare overall height, width, clearance, and speedometer effect before ordering.

Tire Size Finder

Find Tires by Size

Choose the size format that matches your sidewall. Use Metric / Standard for sizes like 275/55R20, 155R12, or 7.50R16. Use Flotation for sizes like 35x12.50R20.

1

Metric / Standard Sizes

Example: 275/55R20, 155R12, 7.50R16

Select a width to begin.

2

Flotation Sizes

Example: 35x12.50R20, 33x12.50R18

Select a tire height to begin.

Tip: Sizes without an aspect ratio, such as 7.50R16 or 155R12, are included in the Metric / Standard finder under No ratio / series.

Tire Sizes by Rim Diameter

Use these tire-size groups to move directly into the BB Wheels tire catalog by rim diameter. Metric sizes are shown with a slash, such as 275/55R20. Flotation-style sizes are shown with an x, such as 35x12.50R20.

12 Inch Tires

Shop 12 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 12 tire-size options.

14.5 Inch Tires

Shop 14.5 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 3 tire-size options.

15 Inch Tires

Shop 15 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 107 tire-size options.

8.25R15 Tires 10R15 Tires 26x7.50R15 Tires 26x8R15 Tires 26x8.50R15 Tires 26x10R15 Tires 27x8.50R15 Tires 27x10.50R15 Tires 28x8.50R15 Tires 28x9R15 Tires 28x10.50R15 Tires 28x11.50R15 Tires 28x12R15 Tires 29x8R15 Tires 29x14R15 Tires 29.5x10.50R15 Tires 29.5x13.50R15 Tires 30x9.50R15 Tires 31x10.50R15 Tires 31x12.50R15 Tires 31x15.50R15 Tires 32x9.50R15 Tires 32x11.50R15 Tires 32x14R15 Tires 33x9.50R15 Tires 33x10R15 Tires 33x10.50R15 Tires 33x12.50R15 Tires 33x13.50R15 Tires 33x14R15 Tires 33x15.50R15 Tires 35x10R15 Tires 35x11R15 Tires 35x12.50R15 Tires 35x14.50R15 Tires 36x12.50R15 Tires 37x14R15 Tires 38x12.50R15 Tires 38x15.50R15 Tires 38.5x11R15 Tires 42x14R15 Tires 42x15R15 Tires 115/70R15 Tires 125/70R15 Tires 125/80R15 Tires 145/65R15 Tires 155/60R15 Tires 155/80R15 Tires 165/50R15 Tires 165/60R15 Tires 165/65R15 Tires 165/80R15 Tires 175/50R15 Tires 175/55R15 Tires 175/60R15 Tires 175/65R15 Tires 185R15 Tires 185/55R15 Tires 185/60R15 Tires 185/65R15 Tires 185/70R15 Tires 195R15 Tires 195/45R15 Tires 195/50R15 Tires 195/55R15 Tires 195/60R15 Tires 195/65R15 Tires 195/70R15 Tires 205R15 Tires 205/50R15 Tires 205/55R15 Tires 205/60R15 Tires 205/65R15 Tires 205/70R15 Tires 205/75R15 Tires 205/90R15 Tires 215/60R15 Tires 215/65R15 Tires 215/70R15 Tires 215/75R15 Tires 225R15 Tires 225/45R15 Tires 225/50R15 Tires 225/60R15 Tires 225/70R15 Tires 225/75R15 Tires 235/50R15 Tires 235/60R15 Tires 235/70R15 Tires 235/75R15 Tires 240/80R15 Tires 245/40R15 Tires 245/60R15 Tires 255/60R15 Tires 255/70R15 Tires 265/50R15 Tires 265/70R15 Tires 265/75R15 Tires 265/85R15 Tires 275/50R15 Tires 275/60R15 Tires 280/70R15 Tires 295/50R15 Tires 295/55R15 Tires 320/65R15 Tires 320/70R15 Tires 325/50R15 Tires

16.5 Inch Tires

Shop 16.5 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 7 tire-size options.

17 Inch Tires

Shop 17 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 113 tire-size options.

28x11.50R17 Tires 33x10.50R17 Tires 33x11.50R17 Tires 33x12.50R17 Tires 34x10.50R17 Tires 34x11.50R17 Tires 35x10.50R17 Tires 35x11.50R17 Tires 35x12.50R17 Tires 35x13.50R17 Tires 36x12.50R17 Tires 37x11.50R17 Tires 37x12.50R17 Tires 37x13.50R17 Tires 37x14R17 Tires 38x11.50R17 Tires 38x12.50R17 Tires 38x13.50R17 Tires 38.5x13.50R17 Tires 39x13.50R17 Tires 39.5x13.50R17 Tires 40x12.50R17 Tires 40x13.50R17 Tires 42x13.50R17 Tires 42x14.50R17 Tires 43x15R17 Tires 125/70R17 Tires 125/80R17 Tires 135/80R17 Tires 135/90R17 Tires 145/70R17 Tires 145/80R17 Tires 155/70R17 Tires 155/80R17 Tires 155/90R17 Tires 165/80R17 Tires 165/90R17 Tires 195/40R17 Tires 195/45R17 Tires 195/60R17 Tires 205/40R17 Tires 205/45R17 Tires 205/50R17 Tires 205/55R17 Tires 215R17 Tires 215/40R17 Tires 215/45R17 Tires 215/50R17 Tires 215/55R17 Tires 215/60R17 Tires 215/65R17 Tires 215/70R17 Tires 225/35R17 Tires 225/45R17 Tires 225/50R17 Tires 225/55R17 Tires 225/60R17 Tires 225/65R17 Tires 225/75R17 Tires 235R17 Tires 235/40R17 Tires 235/45R17 Tires 235/50R17 Tires 235/55R17 Tires 235/60R17 Tires 235/65R17 Tires 235/70R17 Tires 235/75R17 Tires 235/80R17 Tires 245R17 Tires 245/40R17 Tires 245/45R17 Tires 245/50R17 Tires 245/55R17 Tires 245/65R17 Tires 245/70R17 Tires 245/75R17 Tires 255/40R17 Tires 255/45R17 Tires 255/50R17 Tires 255/55R17 Tires 255/60R17 Tires 255/65R17 Tires 255/70R17 Tires 255/75R17 Tires 255/80R17 Tires 255/85R17 Tires 265R17 Tires 265/40R17 Tires 265/60R17 Tires 265/65R17 Tires 265/70R17 Tires 275/40R17 Tires 275/50R17 Tires 275/55R17 Tires 275/60R17 Tires 275/65R17 Tires 275/70R17 Tires 275/80R17 Tires 285/40R17 Tires 285/65R17 Tires 285/70R17 Tires 285/75R17 Tires 295/70R17 Tires 305/45R17 Tires 305/65R17 Tires 305/70R17 Tires 315/35R17 Tires 315/50R17 Tires 315/55R17 Tires 315/70R17 Tires 335/35R17 Tires 345/40R17 Tires

17.5 Inch Tires

Shop 17.5 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 8 tire-size options.

18 Inch Tires

Shop 18 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 104 tire-size options.

28x6R18 Tires 33x10.50R18 Tires 33x11.50R18 Tires 33x12.50R18 Tires 34x11.50R18 Tires 34x12.50R18 Tires 35x11.50R18 Tires 35x12.50R18 Tires 36x12.50R18 Tires 37x11.50R18 Tires 37x12.50R18 Tires 37x13.50R18 Tires 38x11.50R18 Tires 38x13.50R18 Tires 38x15.50R18 Tires 40x13.50R18 Tires 125/70R18 Tires 135/70R18 Tires 135/80R18 Tires 145/85R18 Tires 155/85R18 Tires 165/90R18 Tires 205/40R18 Tires 215/35R18 Tires 215/40R18 Tires 215/45R18 Tires 215/50R18 Tires 215/55R18 Tires 225/35R18 Tires 225/40R18 Tires 225/45R18 Tires 225/50R18 Tires 225/55R18 Tires 225/60R18 Tires 225/65R18 Tires 235/35R18 Tires 235/40R18 Tires 235/45R18 Tires 235/50R18 Tires 235/55R18 Tires 235/60R18 Tires 235/65R18 Tires 235/80R18 Tires 245/35R18 Tires 245/40R18 Tires 245/45R18 Tires 245/50R18 Tires 245/55R18 Tires 245/60R18 Tires 245/65R18 Tires 245/70R18 Tires 245/75R18 Tires 255/35R18 Tires 255/40R18 Tires 255/45R18 Tires 255/50R18 Tires 255/55R18 Tires 255/60R18 Tires 255/65R18 Tires 255/70R18 Tires 265R18 Tires 265/35R18 Tires 265/40R18 Tires 265/45R18 Tires 265/60R18 Tires 265/65R18 Tires 265/70R18 Tires 275R18 Tires 275/35R18 Tires 275/40R18 Tires 275/45R18 Tires 275/60R18 Tires 275/65R18 Tires 275/70R18 Tires 285/30R18 Tires 285/35R18 Tires 285/40R18 Tires 285/50R18 Tires 285/55R18 Tires 285/60R18 Tires 285/65R18 Tires 285/70R18 Tires 285/75R18 Tires 295/30R18 Tires 295/35R18 Tires 295/40R18 Tires 295/45R18 Tires 295/65R18 Tires 295/70R18 Tires 305/35R18 Tires 305/40R18 Tires 305/45R18 Tires 305/60R18 Tires 305/65R18 Tires 305/70R18 Tires 315/30R18 Tires 315/35R18 Tires 315/40R18 Tires 315/70R18 Tires 325/35R18 Tires 325/60R18 Tires 325/65R18 Tires 335/30R18 Tires 345/35R18 Tires

19.5 Inch Tires

Shop 19.5 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 11 tire-size options.

20 Inch Tires

Shop 20 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 126 tire-size options.

8.25R20 Tires 9R20 Tires 10R20 Tires 29x18R20 Tires 31x11.50R20 Tires 31x12.50R20 Tires 31x13.50R20 Tires 32x12.50R20 Tires 33x10.50R20 Tires 33x11.50R20 Tires 33x12R20 Tires 33x12.50R20 Tires 33x13.50R20 Tires 33x14.50R20 Tires 34x11.50R20 Tires 35x11.50R20 Tires 35x12.50R20 Tires 35x13.50R20 Tires 35x14.50R20 Tires 35x15.50R20 Tires 36x13.50R20 Tires 36x15.50R20 Tires 37x11.50R20 Tires 37x12.50R20 Tires 37x13.50R20 Tires 38x11.50R20 Tires 38x13.50R20 Tires 38x14.50R20 Tires 38x15.50R20 Tires 39.5x13.50R20 Tires 40x13.50R20 Tires 40x14.50R20 Tires 40x15.50R20 Tires 41x14R20 Tires 42x13.50R20 Tires 44x18R20 Tires 44x19.50R20 Tires 155/60R20 Tires 175/55R20 Tires 195/50R20 Tires 215/30R20 Tires 215/35R20 Tires 215/45R20 Tires 225/30R20 Tires 225/35R20 Tires 225/40R20 Tires 235/30R20 Tires 235/35R20 Tires 235/40R20 Tires 235/45R20 Tires 235/50R20 Tires 235/55R20 Tires 235/60R20 Tires 245/30R20 Tires 245/35R20 Tires 245/40R20 Tires 245/45R20 Tires 245/50R20 Tires 245/60R20 Tires 255/30R20 Tires 255/35R20 Tires 255/40R20 Tires 255/45R20 Tires 255/50R20 Tires 255/55R20 Tires 255/60R20 Tires 265R20 Tires 265/30R20 Tires 265/35R20 Tires 265/40R20 Tires 265/45R20 Tires 265/50R20 Tires 265/55R20 Tires 265/60R20 Tires 265/65R20 Tires 275R20 Tires 275/25R20 Tires 275/30R20 Tires 275/35R20 Tires 275/40R20 Tires 275/45R20 Tires 275/50R20 Tires 275/55R20 Tires 275/60R20 Tires 275/65R20 Tires 285R20 Tires 285/25R20 Tires 285/30R20 Tires 285/35R20 Tires 285/40R20 Tires 285/45R20 Tires 285/50R20 Tires 285/55R20 Tires 285/60R20 Tires 285/65R20 Tires 285/70R20 Tires 295/25R20 Tires 295/30R20 Tires 295/35R20 Tires 295/40R20 Tires 295/45R20 Tires 295/55R20 Tires 295/60R20 Tires 295/65R20 Tires 305/25R20 Tires 305/30R20 Tires 305/35R20 Tires 305/40R20 Tires 305/45R20 Tires 305/50R20 Tires 305/55R20 Tires 315/30R20 Tires 315/35R20 Tires 315/60R20 Tires 325/25R20 Tires 325/30R20 Tires 325/35R20 Tires 325/50R20 Tires 325/60R20 Tires 335/25R20 Tires 335/30R20 Tires 345/25R20 Tires 345/30R20 Tires 345/55R20 Tires 375/55R20 Tires 395/60R20 Tires

23 Inch Tires

Shop 23 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 12 tire-size options.

24.5 Inch Tires

Shop 24.5 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 4 tire-size options.

25 Inch Tires

Shop 25 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 1 tire-size options.

28 Inch Tires

Shop 28 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 10 tire-size options.

30 Inch Tires

Shop 30 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 6 tire-size options.

32 Inch Tires

Shop 32 inch tire sizes for vehicles and setups that use this rim diameter. This group includes 1 tire-size options.

How to Read Tire Sizes

A common metric tire size like 275/55R20 lists section width first, aspect ratio second, and rim diameter last. The 20 means the tire is made for a 20 inch wheel. A flotation tire size like 35x12.50R20 lists overall tire height, tire width, and rim diameter, which is common on lifted trucks, Jeeps, and off-road applications.

Some specialty, commercial, trailer, agricultural, and ATV/UTV tires use different size formats. Always confirm load range, speed rating, ply, sidewall style, seasonal use, and vehicle fitment before ordering replacement tires.

Frequently Asked Tire Size Questions

What does the R mean in a tire size?

The R stands for radial construction, and the number after it is the wheel diameter the tire fits.

Can I change tire size from stock?

Sometimes yes, but you should compare overall tire height, section width, load rating, wheel width, clearance, and speedometer effect first.

What is the difference between metric and flotation tire sizes?

Metric sizes use a format like 275/55R20, while flotation sizes use a format like 35x12.50R20 and are common on trucks and off-road applications.

How do I know which tire size to buy?

Use the size shown on your current tire sidewall or owner information, then compare brand, tread type, seasonal use, and vehicle fitment before buying.

Related Tire & Wheel Guides

Use these guides and tools when you want to compare tire brands, tire types, wheel sizing, bolt pattern, or overall fitment before buying.

Find the Right Tire Size Faster

Use this guide to shop tires by size, compare tire categories by rim diameter, and narrow the right replacement tires for your vehicle. Once you find your size, compare tread type, brand, load rating, sidewall style, mileage warranty, and overall fitment before placing your order.

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