How tall is a 315/25R22 tire?

A 315/25R22 has a nominal overall diameter of 28.2 inches (716 mm), calculated as the 22-inch wheel plus two sidewalls. This is the unloaded figure — a fitted tire sits fractionally shorter under the weight of the vehicle.

What wheel size does a 315/25R22 tire fit?

A 315/25R22 fits a wheel of 22 inches in diameter. The wheel also has to be within the rim width range the manufacturer publishes for this size, which is printed in the tire's spec sheet.

What do the numbers in 315/25R22 mean?

315 is the section width in millimetres. 25 is the aspect ratio — the sidewall is 25% of the width, so 78.8 mm here. R marks the construction (radial). 22 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size 315/25R22

Dimensions, specs, and every size 315/25R22 tire currently in stock

Overall Height

28.2"

716 mm · calculated

Section Width

315 mm

12.4 inches

Sidewall Height

3.1"

78.8 mm · 25% profile

Wheel Diameter

22"

558.8 mm

315/25R22 Specifications

Read directly from the size code. Load index, speed rating, and rim width range vary by model.

Specification	Imperial	Metric
Section width	12.4 in	315 mm
Aspect ratio	25%	—
Sidewall height	3.1 in	78.8 mm
Overall diameter (calculated)	28.2 in	716 mm
Wheel / rim diameter	22 in	558.8 mm
Construction	Radial	—

What does 315/25R22 mean?

Reading the code on your sidewall

Section width

315 mm

The distance from sidewall to sidewall across the tire's widest point.

Aspect ratio

25% profile

The sidewall stands 25% of the section width, which is 78.8 mm on this size.

Construction (R)

Radial

The body plies run across the tire at right angles to the direction of travel.

Wheel diameter

22 in

Fits a wheel measuring 22 inches across.

315/25R22 Questions & Answers

Dimensions and fitment guidelines for size 315/25R22

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