How tall is a 285/45R22 tire?

A 285/45R22 has a nominal overall diameter of 32.1 inches (815 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 285/45R22 tire fit?

A 285/45R22 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 285/45R22 mean?

285 is the section width in millimetres. 45 is the aspect ratio — the sidewall is 45% of the width, so 128.3 mm here. R marks the construction (radial). 22 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size 285/45R22

Dimensions, specs, and every size 285/45R22 tire currently in stock

Overall Height

32.1"

815 mm · calculated

Section Width

285 mm

11.22 inches

Sidewall Height

5.05"

128.3 mm · 45% profile

Wheel Diameter

22"

558.8 mm

285/45R22 Specifications

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

Specification	Imperial	Metric
Section width	11.22 in	285 mm
Aspect ratio	45%	—
Sidewall height	5.05 in	128.3 mm
Overall diameter (calculated)	32.1 in	815 mm
Wheel / rim diameter	22 in	558.8 mm
Construction	Radial	—

What does 285/45R22 mean?

Reading the code on your sidewall

Section width

285 mm

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

Aspect ratio

45% profile

The sidewall stands 45% of the section width, which is 128.3 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.

285/45R22 Questions & Answers

Dimensions and fitment guidelines for size 285/45R22

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