How tall is a 145/70R13 tire?

A 145/70R13 has a nominal overall diameter of 21 inches (533 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 145/70R13 tire fit?

A 145/70R13 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 145/70R13 mean?

145 is the section width in millimetres. 70 is the aspect ratio — the sidewall is 70% of the width, so 101.5 mm here. R marks the construction (radial). 13 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size 145/70R13

Dimensions, specs, and every size 145/70R13 tire currently in stock

Overall Height

21"

533 mm · calculated

Section Width

145 mm

5.71 inches

Sidewall Height

101.5 mm · 70% profile

Wheel Diameter

13"

330.2 mm

145/70R13 Specifications

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

Specification	Imperial	Metric
Section width	5.71 in	145 mm
Aspect ratio	70%	—
Sidewall height	4 in	101.5 mm
Overall diameter (calculated)	21 in	533 mm
Wheel / rim diameter	13 in	330.2 mm
Construction	Radial	—

What does 145/70R13 mean?

Reading the code on your sidewall

Section width

145 mm

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

Aspect ratio

70% profile

The sidewall stands 70% of the section width, which is 101.5 mm on this size.

Construction (R)

Radial

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

Wheel diameter

13 in

Fits a wheel measuring 13 inches across.

145/70R13 Questions & Answers

Dimensions and fitment guidelines for size 145/70R13

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