How tall is a 275/30ZR19 tire?

A 275/30ZR19 has a nominal overall diameter of 25.5 inches (648 mm), calculated as the 19-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 275/30ZR19 tire fit?

A 275/30ZR19 fits a wheel of 19 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 275/30ZR19 mean?

275 is the section width in millimetres. 30 is the aspect ratio — the sidewall is 30% of the width, so 82.5 mm here. ZR marks the construction (radial). 19 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size 275/30ZR19

Dimensions, specs, and every size 275/30ZR19 tire currently in stock

Overall Height

25.5"

648 mm · calculated

Section Width

275 mm

10.83 inches

Sidewall Height

3.25"

82.5 mm · 30% profile

Wheel Diameter

19"

482.6 mm

275/30ZR19 Specifications

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

Specification	Imperial	Metric
Section width	10.83 in	275 mm
Aspect ratio	30%	—
Sidewall height	3.25 in	82.5 mm
Overall diameter (calculated)	25.5 in	648 mm
Wheel / rim diameter	19 in	482.6 mm
Construction	Radial	—

What does 275/30ZR19 mean?

Reading the code on your sidewall

Section width

275 mm

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

Aspect ratio

30% profile

The sidewall stands 30% of the section width, which is 82.5 mm on this size.

Construction (ZR)

Radial

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

Wheel diameter

19 in

Fits a wheel measuring 19 inches across.

275/30ZR19 Questions & Answers

Dimensions and fitment guidelines for size 275/30ZR19

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