How tall is a ST175/80R13 tire?

A ST175/80R13 has a nominal overall diameter of 24.02 inches (610 mm), calculated as the 13-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 ST175/80R13 tire fit?

A ST175/80R13 fits a wheel of 13 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 ST175/80R13 mean?

175 is the section width in millimetres. 80 is the aspect ratio — the sidewall is 80% of the width, so 140 mm here. R marks the construction (radial). 13 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size ST175/80R13

Dimensions, specs, and every size ST175/80R13 tire currently in stock

Overall Height

24.02"

610 mm · calculated

Section Width

175 mm

6.89 inches

Sidewall Height

5.51"

140 mm · 80% profile

Wheel Diameter

13"

330.2 mm

ST175/80R13 Specifications

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

Specification	Imperial	Metric
Section width	6.89 in	175 mm
Aspect ratio	80%	—
Sidewall height	5.51 in	140 mm
Overall diameter (calculated)	24.02 in	610 mm
Wheel / rim diameter	13 in	330.2 mm
Construction	Radial	—
Service type	Special trailer	—

What does ST175/80R13 mean?

Reading the code on your sidewall

Section width

175 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 140 mm on this size.

Construction (R)

Radial

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

Wheel diameter

13 in

Fits a wheel measuring 13 inches across.

ST175/80R13 Questions & Answers

Dimensions and fitment guidelines for size ST175/80R13

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