How tall is a 245/35ZR20 tire?

A 245/35ZR20 has a nominal overall diameter of 26.76 inches (680 mm), calculated as the 20-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 245/35ZR20 tire fit?

A 245/35ZR20 fits a wheel of 20 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 245/35ZR20 mean?

245 is the section width in millimetres. 35 is the aspect ratio — the sidewall is 35% of the width, so 85.8 mm here. ZR marks the construction (radial). 20 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size 245/35ZR20

Dimensions, specs, and every size 245/35ZR20 tire currently in stock

Overall Height

26.76"

680 mm · calculated

Section Width

245 mm

9.65 inches

Sidewall Height

3.38"

85.8 mm · 35% profile

Wheel Diameter

20"

508.0 mm

245/35ZR20 Specifications

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

Specification	Imperial	Metric
Section width	9.65 in	245 mm
Aspect ratio	35%	—
Sidewall height	3.38 in	85.8 mm
Overall diameter (calculated)	26.76 in	680 mm
Wheel / rim diameter	20 in	508.0 mm
Construction	Radial	—

What does 245/35ZR20 mean?

Reading the code on your sidewall

Section width

245 mm

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

Aspect ratio

35% profile

The sidewall stands 35% of the section width, which is 85.8 mm on this size.

Construction (ZR)

Radial

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

Wheel diameter

20 in

Fits a wheel measuring 20 inches across.

245/35ZR20 Questions & Answers

Dimensions and fitment guidelines for size 245/35ZR20

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