How tall is a 225/90R16 tire?

A 225/90R16 has a nominal overall diameter of 31.94 inches (811 mm), calculated as the 16-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 225/90R16 tire fit?

A 225/90R16 fits a wheel of 16 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 225/90R16 mean?

225 is the section width in millimetres. 90 is the aspect ratio — the sidewall is 90% of the width, so 202.5 mm here. R marks the construction (radial). 16 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size 225/90R16

Dimensions, specs, and every size 225/90R16 tire currently in stock

Overall Height

31.94"

811 mm · calculated

Section Width

225 mm

8.86 inches

Sidewall Height

7.97"

202.5 mm · 90% profile

Wheel Diameter

16"

406.4 mm

225/90R16 Specifications

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

Specification	Imperial	Metric
Section width	8.86 in	225 mm
Aspect ratio	90%	—
Sidewall height	7.97 in	202.5 mm
Overall diameter (calculated)	31.94 in	811 mm
Wheel / rim diameter	16 in	406.4 mm
Construction	Radial	—

What does 225/90R16 mean?

Reading the code on your sidewall

Section width

225 mm

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

Aspect ratio

90% profile

The sidewall stands 90% of the section width, which is 202.5 mm on this size.

Construction (R)

Radial

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

Wheel diameter

16 in

Fits a wheel measuring 16 inches across.

225/90R16 Questions & Answers

Dimensions and fitment guidelines for size 225/90R16

Tires Size 225/90R16

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Filter & search

225/90R16 Specifications

What does 225/90R16 mean?

225 mm

90% profile

Radial

16 in

225/90R16 Questions & Answers

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