How tall is a 255/80R22.5 tire?

A 255/80R22.5 has a nominal overall diameter of 38.56 inches (979 mm), calculated as the 22.5-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 255/80R22.5 tire fit?

A 255/80R22.5 fits a wheel of 22.5 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 255/80R22.5 mean?

255 is the section width in millimetres. 80 is the aspect ratio — the sidewall is 80% of the width, so 204 mm here. R marks the construction (radial). 22.5 is the wheel diameter in inches.

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Size Dimensions & Specs

Tires Size 255/80R22.5

Dimensions, specs, and every size 255/80R22.5 tire currently in stock

Overall Height

38.56"

979 mm · calculated

Section Width

255 mm

10.04 inches

Sidewall Height

8.03"

204 mm · 80% profile

Wheel Diameter

22.5"

571.5 mm

255/80R22.5 Specifications

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

Specification	Imperial	Metric
Section width	10.04 in	255 mm
Aspect ratio	80%	—
Sidewall height	8.03 in	204 mm
Overall diameter (calculated)	38.56 in	979 mm
Wheel / rim diameter	22.5 in	571.5 mm
Construction	Radial	—

What does 255/80R22.5 mean?

Reading the code on your sidewall

Section width

255 mm

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

Aspect ratio

80% profile

The sidewall stands 80% of the section width, which is 204 mm on this size.

Construction (R)

Radial

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

Wheel diameter

22.5 in

Fits a wheel measuring 22.5 inches across.

255/80R22.5 Questions & Answers

Dimensions and fitment guidelines for size 255/80R22.5

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Tires Size 255/80R22.5

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255/80R22.5 Specifications

What does 255/80R22.5 mean?

255 mm

80% profile

Radial

22.5 in

255/80R22.5 Questions & Answers

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