Tire Size Comparison Calculator & Chart





Tire Size Comparision Chart

Tire 1 Tire 2 Difference
Diameter
Tread Width
Rim Diameter
Sidewall Height
Circumference
Revs/Mile
Revs/Kilometer

Speedometer Error

Tire 1 (Mph)Tire 2 (Mph)
20
35
50
65
80
90
100
Tire 1 Front View
Width
Dia.
Tire 2 Front View
Width
Dia.
Tire 1 Side View
Tire 1 Wheel
Circ.
Rim
Wall
Revs/Mile
Tire 2 Side View
Tire 2 Wheel
Circ.
Rim
Wall
Revs/Mile

Tire Comparison FAQs

What is the 3% rule on tires?

Normally, we can replace the tires that are within ±3% of the Overal Tire diameter measurement of your current tires’ diameter — assuming your current tires are recommendations from your vehicle model. Check our tire size chart here or the tire size calculator tool here to find your size.

Is it OK to have mismatched tires?

You should avoid mixing different tire brands and tread patterns. There are rare exceptions to approved composite tire fittings, but in general, the use of tire mixtures is not recommended by manufacturers at all.

Does the thickness of a tire matter?

Depending on the type of vehicle (truck, SUV, passenger car) you drive and where you’re driving it (Snow, rain, off-road), the thickness of your tires can make a big difference in the way your vehicle handles.

Most Tire Size Comparison:

  • 185/70R13 vs 175/80R13
  • 195/60R15 vs 185/65R15
  • 205/75R15 vs 225/75R15
  • 255/60R15 vs 275/60R15
  • 215/65R16 vs 225/60R16
  • 225/60R16 vs 225/65R16
  • 235/85R16 vs 265/75R16
  • 245/75R16 vs 235/85R16
  • 245/75R16 vs 265/70R16
  • 245/75R16 vs 265/75R16
  • 265/70R16 vs 265/75R16
  • 265/75R16 vs 285/75R16
  • 305/70R16 vs 285/75R16
  • 225/60R17 vs 225/65R17
  • 255/75R17 vs 265/70R17
  • 265/65R17 vs 265/70R17
  • 265/70 R17 vs 275/70R17
  • 265/70R16 vs 265/70R17
  • 265/70R17 vs 275/70R17
  • 265/70R17 vs 285/70R17
  • 275/70R17 vs 285/70R17
  • 285/70R17 vs 265/70R17
  • 285/70R17 vs 285/75R17
  • 285/70R17 vs 315/70R17
  • 235/40R18 vs 235/45R18
  • 275/65R18 vs 275/70R18
  • 275/70R18 vs 285/65R18
  • 225/35R20 vs 245/30R20
  • 275/55R20 vs 275/60R20
  • 275/55R20 vs 275/65R20
  • 275/60R20 vs 275/65R20
  • 285/60R20 vs 305/55R20