LT375/45R20 in inches

How tall is a LT375 45R20 tire?

When converted to inches, the equivalent of a LT375/45R20 tire size is 33.4x14.8R20. It means that:

  • height overall (or diameter) is 33.4 inches
  • tread width is 14.8 inches
  • wheel diameter is 20 inches

Learn more

LT375/45R20 tire size in inches
LT375/45R20 tire size chart

LT375/45R20 tire size in inches

LT375/45R20 Height / overall diameter: 33.4 inches
Height / overall diameter
33.4 inches
LT375/45R20 Tread width: 14.8 inches
Tread width
14.8 inches
LT375/45R20 Sidewall: 6.7 inches
Sidewall
6.7 inches
LT375/45R20 Wheel diameter: 20 inches
Wheel diameter
20 inches
LT375/45R20 Circumference: 104.9 inches
Circumference
104.9 inches
LT375/45R20 Revolutions: 605 per mile
Revolutions
605 per mile

LT375/45R20 — what does it mean?

  • LT means "light truck"
  • 375 stands for tread width in millimeters
  • 45 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

LT375/45R20 tire code
LT375/45R20 tire code

How to convert LT375 45R20 to inches?

First of all, we need to divide 375 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 14.8″. Then, 45% of the 14.8″ will result in 6.7″ 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 33.4″ total tire diameter (or height).

For your convenience, below is a table for LT375/45R20 conversion to inches:

Inches Metric
Overall diameter (height) 33.4″ 848 mm
Tread width 14.8″ 375 mm
Wheel diameter 20″ 848 mm
Sidewall height 6.7″ 169 mm
Circumference 104.9″ 2663 mm
Revolutions 605 / ml 376 / km

Alternatives to a LT375/45R20 tire

If you're looking to upsize your LT375 45R20 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
305/55R20 33.2″ -0.15% 12″ 20″
LT305/55R20 33.2″ -0.15% 12″ 20″
275/65R20 34″ 0.47% 10.8″ 20″
LT275/65R20 34″ 0.47% 10.8″ 20″
275/60R20 33″ -0.3% 10.8″ 20″
295/55R20 32.8″ -0.45% 11.6″ 20″
285/60R20 33.4″ 0% 11.2″ 20″
295/60R20 34″ 0.47% 11.6″ 20″
265/60R20 32.6″ -0.6% 10.4″ 20″
LT285/60R20 33.4″ 0% 11.2″ 20″