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255/40R20 Sizing Info

255/40R20
Diameter: 28.03 inches
Sidewall Height: 4.02 inches
Radius: 14.02 inches
Rim Diameter: 20.00 inches
Section Width: 10.04 inches
Circumference: 88.06 inches
Rev/Mile: 719.48
Rim Width Range: 8″, 8.5″, 9″, 9.5″, 10″
List of 255/40R20 Sized Tires

All of the tires listed below will fit the size you are looking for. 

Michelin Pilot Sport 4S
  • Rating: 4.60 / 5
  • Summer
Get Free Shipping!
Michelin Pilot Super Sport
  • Rating: 4.50 / 5
  • Summer
Get Free Shipping!
Continental ExtremeContact Sport
  • Rating: 4.40 / 5
  • Summer
Get Free Shipping!
Falken Azenis FK510
  • Rating: 4.40 / 5
  • Summer
Get Free Shipping!
Michelin Pilot Sport All Season 4
  • Rating: 4.40 / 5
  • All-Season
Get Free Shipping!
Pirelli Winter Sottozero Serie II
  • Rating: 4.32 / 5
  • Snow & Ice
Get Free Shipping!
Michelin Pilot Sport 3
  • Rating: 4.30 / 5
  • Summer
Get Free Shipping!
Yokohama Parada Spec-X
  • Rating: 4.20 / 5
  • Truck/SUV All-Season
Get Free Shipping!
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Tire Size 255/40R20 in inches

Below are the most common tire sizing information in inches:

255/40R20 Height - How tall is a 255/40R20 tire in inches?

This tire size is 28.031 inches tall.

255/40R20 Width in inches - How wide is a 255/40R20 tire?

This tire size is 10.039 inches wide (tread width).

What's the Sidewall Size of a 255/40R20 Tire in Inches?

This tire size has 4.016 inch sidewalls.

Other Questions About the 255/40R20 Tire Size

Here's some other common questions asked about this tire size:

What size rims fit a 255/40R20 tire?

This tire will fit onto 20 inch wheels.

What is the next size up from 255/40R20?

The tire sizes below are the next sizes up from 255/40R20. The table shows the increase in diameter and width for each option.

Tire SizeDiameter (in)Width (in)Diameter ChangeWidth Change
295/35R2028.13011.614+ 0.098 in+ 1.575 in
345/30R2028.15013.583+ 0.118 in+ 3.543 in
265/40R2028.34610.433+ 0.315 in+ 0.394 in
305/35R2028.40612.008+ 0.374 in+ 1.969 in
275/40R2028.66110.827+ 0.63 in+ 0.787 in

What is the next size down from 255/40R20?

The tire sizes below are the next sizes down from 255/40R20. The table shows the decrease in diameter and width for each option.

Tire SizeDiameter (in)Width (in)Diameter ChangeWidth Change
245/40R2027.7179.646- 0.315 in- 0.394 in
195/50R2027.6777.677- 0.354 in- 2.362 in
215/45R2027.6188.465- 0.413 in- 1.575 in
175/55R2027.5796.890- 0.453 in- 3.15 in
235/40R2027.4029.252- 0.63 in- 0.787 in

What does the 255 mean in tire size?

This represents the treadwidth of the tire. The tread is 255mm wide, or 28.031 inches wide.

What does the 40 mean in tire size?

This represents the sidewall height of the tire, as a percentage of the width. The sidewall height is 40% of 255mm, or 102mm, which is 4.016 inches.

What does the 20 mean in tire size?

This represents the wheel diameter that this tire size fits on. This tire size is meant to fit a 20 inch wheel.



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