LT285/65R20 in inches

How tall is a LT285 65R20 tire?

When converted to inches, the equivalent of a LT285/65R20 tire size is 34.6x11.2R20. It means that:

  • height overall (or diameter) is 34.6 inches
  • tread width is 11.2 inches
  • wheel diameter is 20 inches

Learn more

LT285/65R20 tire size in inches
LT285/65R20 tire size chart

LT285/65R20 tire size in inches

LT285/65R20 Height / overall diameter: 34.6 inches
Height / overall diameter
34.6 inches
LT285/65R20 Tread width: 11.2 inches
Tread width
11.2 inches
LT285/65R20 Sidewall: 7.3 inches
Sidewall
7.3 inches
LT285/65R20 Wheel diameter: 20 inches
Wheel diameter
20 inches
LT285/65R20 Circumference: 108.6 inches
Circumference
108.6 inches
LT285/65R20 Revolutions: 583 per mile
Revolutions
583 per mile

LT285/65R20 — what does it mean?

  • LT means "light truck"
  • 285 stands for tread width in millimeters
  • 65 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

LT285/65R20 tire code
LT285/65R20 tire code

How to convert LT285 65R20 to inches?

First of all, we need to divide 285 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 11.2″. Then, 65% of the 11.2″ will result in 7.3″ 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 34.6″ total tire diameter (or height).

For your convenience, below is a table for LT285/65R20 conversion to inches:

Inches Metric
Overall diameter (height) 34.6″ 879 mm
Tread width 11.2″ 285 mm
Wheel diameter 20″ 879 mm
Sidewall height 7.3″ 185 mm
Circumference 108.6″ 2760 mm
Revolutions 583 / ml 362 / km

Alternatives to a LT285/65R20 tire

If you're looking to upsize your LT285 65R20 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
275/65R20 34″ -0.43% 10.8″ 20″
LT275/65R20 34″ -0.43% 10.8″ 20″
285/65R20 34.6″ 0% 11.2″ 20″
325/60R20 35.4″ 0.56% 12.8″ 20″
295/60R20 34″ -0.43% 11.6″ 20″
295/65R20 35.2″ 0.42% 11.6″ 20″
315/60R20 34.8″ 0.14% 12.4″ 20″
305/60R20 34.4″ -0.14% 12″ 20″
LT325/60R20 35.4″ 0.56% 12.8″ 20″
335/55R20 34.4″ -0.14% 13.2″ 20″