How big is a 315/25R20 tire’s height?
The overall diameter of a 315/25R20 is 26.2 inches or 666 mm tall (measurement of a tire’s outside diameter through its exact center when inflated with no load.
How wide is a 315/25R20 tire’s width?
The 315/25R20 has a width of 12.4 inches or 315 mm wide. This is the measurement of the tire at its thickest point, the distance between the outer sidewall’s widest point and the inner sidewall’s widest point. This physical width of the tire can change if the tire is mounted on a wheel slightly wider or narrower than the size indicated by the rim width.
What is a 315/25R20 tire sidewall height?
The 315/25R20 has a sidewall height of 3.1 inches or 79 mm tall. It’s measured from the wheel rim to the top of the tread, expressed as a percentage of tire width.
What size rim do you need for 315/25R20?
The 315/25R20 tire has a size rim of 20 inches or 508 mm. This number represents the distance between the two bead seat areas where the tire is sealed onto the wheel.
How many revolutions for 315/25R20 per mile or kilometer?
The 315/25R20 performs 769 revolutions per mile or 478 revolutions per kilometer. Revolutions per mile indicate the number of times a tire revolves while it covers the distance of one mile/kilometer
How about 315/25R20 tire circumference?
The circumference of 315/25R20 is 82.3 inches or 2090 mm.
What’s wider or narrow than 315/25R20 is acceptable?
You can replace the 315/25R20 tires that are within ±3% of the overall tire diameter. In this case, it’s between 25.4 and 27 inches (646mm to 686 mm). Check our tire size chart here or the tire size calculator tool here to find your size.

