How tall is a 225/40R19 tire?

A 225/40R19 has a nominal overall diameter of 26.08 inches (662 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 225/40R19 tire fit?

A 225/40R19 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 225/40R19 mean?

225 is the section width in millimetres. 40 is the aspect ratio — the sidewall is 40% of the width, so 90 mm here. R marks the construction (radial). 19 is the wheel diameter in inches.

Size Dimensions & Specs

Tires Size 225/40R19

Dimensions, specs, and every size 225/40R19 tire currently in stock

Overall Height

26.08"

662 mm · calculated

Section Width

225 mm

8.86 inches

Sidewall Height

3.54"

90 mm · 40% profile

Wheel Diameter

19"

482.6 mm

225/40R19 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	40%	—
Sidewall height	3.54 in	90 mm
Overall diameter (calculated)	26.08 in	662 mm
Wheel / rim diameter	19 in	482.6 mm
Construction	Radial	—

What does 225/40R19 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

40% profile

The sidewall stands 40% of the section width, which is 90 mm on this size.

Construction (R)

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.

225/40R19 Questions & Answers

Dimensions and fitment guidelines for size 225/40R19

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