345/25R20 in inches

How tall is a 345 25R20 tire?

When converted to inches, the equivalent of a 345/25R20 tire size is 26.8x13.6R20. It means that:

  • height overall (or diameter) is 26.8 inches
  • tread width is 13.6 inches
  • wheel diameter is 20 inches

Learn more

345/25R20 tire size in inches
345/25R20 tire size chart

345/25R20 tire size in inches

345/25R20 Height / overall diameter: 26.8 inches
Height / overall diameter
26.8 inches
345/25R20 Tread width: 13.6 inches
Tread width
13.6 inches
345/25R20 Sidewall: 3.4 inches
Sidewall
3.4 inches
345/25R20 Wheel diameter: 20 inches
Wheel diameter
20 inches
345/25R20 Circumference: 84.2 inches
Circumference
84.2 inches
345/25R20 Revolutions: 753 per mile
Revolutions
753 per mile

345/25R20 — what does it mean?

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

345/25R20 tire code
345/25R20 tire code

How to convert 345 25R20 to inches?

First of all, we need to divide 345 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 13.6″. Then, 25% of the 13.6″ will result in 3.4″ sidewall.

To get the total height or tire diameter, we need to sum the 20″ rim diameter with two of the sidewall heights. It will result in a 26.8″ total tire diameter (or height).

For your convenience, below is a table for 345/25R20 conversion to inches:

Inches Metric
Overall diameter (height) 26.8″ 681 mm
Tread width 13.6″ 345 mm
Wheel diameter 20″ 681 mm
Sidewall height 3.4″ 86 mm
Circumference 84.2″ 2138 mm
Revolutions 753 / ml 468 / km

Alternatives to a 345/25R20 tire

If you're looking to upsize your 345 25R20 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
255/35R20 27″ 0.18% 10″ 20″
245/35R20 26.8″ 0% 9.6″ 20″
275/35R20 27.6″ 0.72% 10.8″ 20″
145/60R20 26.8″ 0% 5.7″ 20″
145/65R20 27.4″ 0.54% 5.7″ 20″
155/60R20 27.4″ 0.54% 6.1″ 20″
175/55R20 27.6″ 0.72% 6.9″ 20″
225/35R20 26.2″ -0.59% 8.9″ 20″
225/40R20 27″ 0.18% 8.9″ 20″
235/35R20 26.4″ -0.37% 9.3″ 20″