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The Ultimate Tire Resource

Tire Sizes, Specs, Prices & more

Use our tire size tools to calculate specs, actual speed, gear ratios and much more to find the right tire for you. Browse tires by size, vehicle, brand or category and compare prices online all in one place.

TireSize.com

We believe the more you understand about tires, the more satisfied you will be with your next tire purchase. This is what drives us to work as hard as possible to provide you with the most relevant and up to date tire information on the web.

Our tire calculators and charts allow you to convert sizes, quickly compare specs like diameter, width, sidewall and circumference, or even check your speedometer error and effective differential gearing changes. Our tools also include a unique visual experience that allows you to see and compare tire size results with actual tire images.

We provide an extensive tire database including a compilation of manufacturer tire specs second to none. This will not only get you the information you need to select the optimal tire for your application, but give you the ability to compare prices on thousands of tires online. Search by brand, size, category or vehicle to find the right tire at the most affordable price.


Tire Sizes by Wheel Size

  • 13"
  • 14"
  • 15"
  • 16"
  • 16.5"
  • 17"
  • 18"
  • 19"
  • 20"
  • 21"
  • 22"
  • 23"
  • 24"
  • 26"
  • 28"
  • 30"

Tire Sizes for 13" Wheels

21" Tire Diameter

185/60R13 = 21.7x7.3R13
215/50R13 = 21.5X8.5R13
225/45R13 = 21x8.9R13
225/50R13 = 21.9x8.9R13
255/40R13 = 21x10R13

22" Tire Diameter

155/80R13 = 22.8x6.1R13
175/70R13 = 22.6x6.9R13
205/60R13 = 22.7x8.1R13
22X8R13

23" Tire Diameter

165/80R13 = 23.4X6.5R13
185/70R13 = 23.2x7.3R13

24" Tire Diameter

175/80R13 = 24x6.9R13
185/80R13 = 24.7x7.3R13
24.5X8R13
24.5X9R13

Tire Sizes by Diameter

  • 21"
  • 22"
  • 23"
  • 24"
  • 25"
  • 26"
  • 27"
  • 28"
  • 29"
  • 30"
  • 31"
  • 32"
  • 33"
  • 34"
  • 35"
  • 36"
  • 37"
  • 38"
  • 39"
  • 40"
  • 41-54"

21" Diameter Tire Sizes

13" Wheel Size

185/60R13 = 21.7x7.3R13
215/50R13 = 21.5X8.5R13
225/45R13 = 21x8.9R13
225/50R13 = 21.9x8.9R13
255/40R13 = 21x10R13

14" Wheel Size

165/55R14 = 21.1X6.5R14

15" Wheel Size

115/70R15 = 21.3X4.5R15
125/70R15 = 21.9X4.9R15
165/50R15 = 21.5X6.5R15
195/45R15 = 21.9x7.7R15
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