LT355/60R20 in inches

LT355/60R20 — what does it mean?

• LT means "light truck"
• 355 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
• 20 is a wheel diameter (or rim) in inches

How to convert LT355 60R20 to inches?

First of all, we need to divide 355 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 14″. Then, 60% of the 14″ will result in 8.4″ 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 36.8″ total tire diameter (or height).

For your convenience, below is a table for LT355/60R20 conversion to inches:

Alternatives to a LT355/60R20 tire

If you're looking to upsize your LT355 60R20 tires, try to stay within 3% deviation of an overall diameter for safety reasons.