395/65R18 in inches

How tall is a 395 65R18 tire?

When converted to inches, the equivalent of a 395/65R18 tire size is 38.2x15.6R18. It means that:

  • height overall (or diameter) is 38.2 inches
  • tread width is 15.6 inches
  • wheel diameter is 18 inches

Learn more

395/65R18 tire size in inches
395/65R18 tire size chart

395/65R18 tire size in inches

395/65R18 Height / overall diameter: 38.2 inches
Height / overall diameter
38.2 inches
395/65R18 Tread width: 15.6 inches
Tread width
15.6 inches
395/65R18 Sidewall: 10.1 inches
10.1 inches
395/65R18 Wheel diameter: 18 inches
Wheel diameter
18 inches
395/65R18 Circumference: 119.9 inches
119.9 inches
395/65R18 Revolutions: 528 per mile
528 per mile

395/65R18 — what does it mean?

  • 395 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
  • 18 is a wheel diameter (or rim) in inches

395/65R18 tire code
395/65R18 tire code

How to convert 395 65R18 to inches?

First of all, we need to divide 395 mm (width) by 25.4 (mm to inch conversion), which will give us a width of 15.6″. Then, 65% of the 15.6″ will result in 10.1″ sidewall.

To get the total height or tire diameter, we need to sum the 18″ rim diameter with two of the sidewall heights. It will result in a 38.2″ total tire diameter (or height).

For your convenience, below is a table for 395/65R18 conversion to inches:

Inches Metric
Overall diameter (height) 38.2″ 970 mm
Tread width 15.6″ 395 mm
Wheel diameter 18″ 970 mm
Sidewall height 10.1″ 257 mm
Circumference 119.9″ 3046 mm
Revolutions 528 / ml 328 / km

Alternatives to a 395/65R18 tire

If you're looking to upsize your 395 65R18 tires, try to stay within 3% deviation of an overall diameter for safety reasons.

Tire Tire diameter Width Wheel Size
LT395/65R18 38.2″ 0% 15.6″ 18″