315/50R20 In Inches – Tire Size & Wheel Fitment Guide


What size tire is 315/50R20 in Inches?

The 315/50R20 tire has an overall diameter of 32.4 inches, a section width of 12.4 inches, and can be mounted on 20 x 8.5-11.0 inches rim. The equivalent tire size in the high flotation system is 32.4x12.4R20.

InchesMillimeters
Tire Diameter32.4823
Section Width12.4315
Rim Height20508
Sidewall Height6.2157.5
Circumference101.82585.5
tire diameter
12.4"
32.4"
Tire Side
Tire Circumference
101.8"
20"
6.2"
622.4 Revs/Mile

To make it clear, we'll break down each part of the 315/50R20 tire size to know what these numbers represent & how they may affect your vehicle tire's performance:



How tall is a 315/50R20 tire?

A 315/50R20 tire has a height of 32.4 inches (823 mm). This is the measurement from the bottom to the highest point at the top of a tire through its exact center when inflated and no load.

Tire Diameter
Tire diameter: 32.4 In.


How wide is a 315/50R20 tire?

The 315/50R20 has a width of 12.4 inches (315 mm). This is the tire measurement at its thickest point, the distance between the inner sidewall’s and the outer sidewall’s widest point, also known as section width or tread width.

tread width
Tread width: 12.4 In.


315/50R20 sidewall height

The sidewall height of a 315/50R20 is 6.2 inches (157.5 mm). It’s measured from the rim to the outer edge of the tire's tread, expressed as a percentage of tire width.

sidewall height
Sidewall height: 6.2 In.


What size rim do I need for 315/50R20 tire?

You can put on a rim with a height of 20 inches and a rim width ranging from 8.5-11.0 inches for a 315/50R20 tire. (Based on recommendations of The Tire and Rim Association (TRA))

Putting very wide tires on narrow rims or vice versa can result in reduced performance of the tire.

Rim Diameter
Rim height: 20 In.
rim width
Rim width: 8.5-11.0 In.


315/50R20 circumference

The 315/50R20 tire has a circumference of 101.8 inches (2585.5 mm), This is the measurement of the distance the tire covers in one full rotation.

The tire circumference is important for your vehicle's overall performance, affecting its speedometer accuracy, acceleration & fuel efficiency.

Circumference
Circumference: 101.8 In.


315/50R20 Revolutions

The 315/50R20 performs 622.4 revs/mile. Revolutions per mile indicate the number of times a tire rotates while it covers the distance of one mile.

Revolutions
622.4 revs/mile


Alternative Tire Sizes for 315/50R20

As a rule, you can replace the tire within a 3% difference in tire diameter (height) of the OEM tire size. Here is the full list of replacement sizes compatible with 315/50R20:

Tire SizeDiameterRim (H x W)
375/45R2033.3″ (+2.7%)20″ x n/a
305/55R2033.2″ (+2.4%)20″ x 8.5-10.0″
285/50R2233.2″ (+2.4%)22″ x 8.0-10.0″
315/45R2233.2″ (+2.4%)22″ x 10.0-12.0″
355/40R2233.2″ (+2.4%)22″ x 12.0-14.0″
275/60R2033″ (+1.8%)20″ x 7.5-9.5″
245/70R19.533″ (+1.8%)19.5″ x n/a
275/55R2132.9″ (+1.5%)21″ x 7.5-9.5″
295/55R2032.8″ (+1.2%)20″ x 8.0-10.0″
325/50R2032.8″ (+1.2%)20″ x 9.0-11.5″
275/50R2232.8″ (+1.2%)22″ x 7.5-9.5″
305/45R2232.8″ (+1.2%)22″ x 9.5-11.5″
305/40R2332.6″ (+0.6%)23″ x 10.0-12.0″
265/60R2032.5″ (+0.3%)20″ x 7.5-9.5″
295/45R2232.5″ (+0.3%)22″ x 9.5-11.0″
265/50R2232.4″ (Equal)22″ x 7.5-9.5″
285/55R2032.3″ (-0.3%)20″ x 8.0-10.0″
315/45R2132.2″ (-0.6%)21″ x n/a
325/40R2232.2″ (-0.6%)22″ x 11.0-13.0″
255/65R1932.1″ (-0.9%)19″ x 7.0-9.0″
285/45R2232.1″ (-0.9%)22″ x 9.0-10.5″
255/60R2032″ (-1.3%)20″ x 7.0-9.0″
305/50R2032″ (-1.3%)20″ x 8.5-11.0″
285/40R2332″ (-1.3%)23″ x 9.5.0-11.0″
325/35R2332″ (-1.3%)23″ x n/a
275/55R2031.9″ (-1.6%)20″ x 7.5-9.5″
225/70R19.531.9″ (-1.6%)19.5″ x n/a
275/50R2131.8″ (-1.9%)21″ x 7.5-9.5″
275/45R2231.7″ (-2.2%)22″ x 8.5-10.5″
275/40R2331.7″ (-2.2%)23″ x 9.0-11.0″
245/60R2031.6″ (-2.5%)20″ x 7.0-8.5″
295/50R2031.6″ (-2.5%)20″ x 8.0-10.5″
305/40R2231.6″ (-2.5%)22″ x 10.0-12.0″
265/55R2031.5″ (-2.9%)20″ x n/a

More tire sizes for 20" Wheel:

25″ Tire Diameter

26″ Tire Diameter

27″ Tire Diameter


28″ Tire Diameter

29″ Tire Diameter

30″ Tire Diameter


31″ Tire Diameter

32″ Tire Diameter

33″ Tire Diameter


34″ Tire Diameter

35″ Tire Diameter

36″ Tire Diameter

37″ Tire Diameter

39″ Tire Diameter

*Disclaimer: Please note that our tire dimensions & measurements are an approximation number, while the tire manufacturers may have different ways in calculating or rounding numbers. We recommend referring to the vehicle manufacturer's manual or checking with the tire technician to find out the correct tire size for your vehicle.


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