315/60R15 in inches

How tall is a 315 60R15 tire?

When converted to inches, the equivalent of a 315/60R15 tire size is 29.8x12.4R15. It means that:

  • height overall (or diameter) is 29.8 inches
  • tread width is 12.4 inches
  • wheel diameter is 15 inches

Learn more

315/60R15 tire size in inches
315/60R15 tire size chart

315/60R15 tire size in inches

315/60R15 Height / overall diameter: 29.8 inches
Height / overall diameter
29.8 inches
315/60R15 Tread width: 12.4 inches
Tread width
12.4 inches
315/60R15 Sidewall: 7.4 inches
Sidewall
7.4 inches
315/60R15 Wheel diameter: 15 inches
Wheel diameter
15 inches
315/60R15 Circumference: 93.6 inches
Circumference
93.6 inches
315/60R15 Revolutions: 678 per mile
Revolutions
678 per mile

315/60R15 — what does it mean?

  • 315 stands for tread width in millimeters
  • 60 is an aspect ration between the tread width and the sidewall in percents
  • R means that the tire has a radial construction
  • 15 is a wheel diameter (or rim) in inches

315/60R15 tire code
315/60R15 tire code

How to convert 315 60R15 to inches?

First of all, we need to divide 315 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 12.4″. Then, 60% of the 12.4″ will result in 7.4″ sidewall.

To get the total height or tire diameter, we need to sum the 15″ rim diameter with two of the sidewall heights. It will result in a 29.8″ total tire diameter (or height).

For your convenience, below is a table for 315/60R15 conversion to inches:

Inches Metric
Overall diameter (height) 29.8″ 757 mm
Tread width 12.4″ 315 mm
Wheel diameter 15″ 757 mm
Sidewall height 7.4″ 189 mm
Circumference 93.6″ 2377 mm
Revolutions 678 / ml 421 / km

Alternatives to a 315/60R15 tire

If you're looking to upsize your 315 60R15 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
265/75R15 30.6″ 0.65% 10.4″ 15″
265/70R15 29.6″ -0.17% 10.4″ 15″
255/70R15 29″ -0.67% 10″ 15″
255/75R15 30″ 0.16% 10″ 15″
245/75R15 29.4″ -0.33% 9.6″ 15″
205/90R15 29.6″ -0.17% 8.1″ 15″
215/85R15 29.4″ -0.33% 8.5″ 15″
225/80R15 29.2″ -0.5% 8.9″ 15″
235/80R15 29.8″ 0% 9.3″ 15″
275/70R15 30.2″ 0.33% 10.8″ 15″