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255/55R18 Sizing Info

255/55R18
Diameter: 29.04 inches
Sidewall Height: 5.52 inches
Radius: 14.52 inches
Rim Diameter: 18.00 inches
Section Width: 10.04 inches
Circumference: 91.24 inches
Rev/Mile: 694.42
Rim Width Range: 7″, 7.5″, 8″, 8.5″, 9″
List of 255/55R18 Sized Tires

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

Continental CrossContact LX25
  • Rating: 4.60 / 5
  • Truck/SUV All-Season
Get Free Shipping!
Pirelli Scorpion Verde All Season Plus II
  • Rating: 4.60 / 5
  • Truck/SUV All-Season
Get Free Shipping!
Michelin CrossClimate SUV
  • Rating: 4.60 / 5
  • Truck/SUV All-Season
Get Free Shipping!
Michelin Primacy Tour A/S
  • Rating: 4.50 / 5
  • All-Season
Get Free Shipping!
Cooper Evolution H/T
  • Rating: 4.50 / 5
  • Truck/SUV All-Season
Get Free Shipping!
Goodyear Assurance WeatherReady
  • Rating: 4.50 / 5
  • All-Season
Get Free Shipping!
Michelin Defender LTX M/S
  • Rating: 4.50 / 5
  • All-Season
Get Free Shipping!
BFGoodrich Advantage T/A Sport LT
  • Rating: 4.40 / 5
  • Truck/SUV All-Season
Get Free Shipping!
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Tire Size 255/55R18 in inches

Below are the most common tire sizing information in inches:

255/55R18 Height - How tall is a 255/55R18 tire in inches?

This tire size is 29.043 inches tall.

255/55R18 Width in inches - How wide is a 255/55R18 tire?

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

What's the Sidewall Size of a 255/55R18 Tire in Inches?

This tire size has 5.522 inch sidewalls.

Other Questions About the 255/55R18 Tire Size

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

What size rims fit a 255/55R18 tire?

This tire will fit onto 18 inch wheels.

What is the next size up from 255/55R18?

The tire sizes below are the next sizes up from 255/55R18. The table shows the increase in diameter and width for each option.

Tire SizeDiameter (in)Width (in)Diameter ChangeWidth Change
285/50R1829.22011.220+ 0.177 in+ 1.181 in
275/55R1829.90910.827+ 0.866 in+ 0.787 in
285/55R1830.34311.220+ 1.299 in+ 1.181 in
265/60R1830.52010.433+ 1.476 in+ 0.394 in
275/60R1830.99210.827+ 1.949 in+ 0.787 in

What is the next size down from 255/55R18?

The tire sizes below are the next sizes down from 255/55R18. The table shows the decrease in diameter and width for each option.

Tire SizeDiameter (in)Width (in)Diameter ChangeWidth Change
29x4.5R1829.0004.500- 0.043 in- 5.539 in
29x5R1829.0005.000- 0.043 in- 5.039 in
29x5.5R1829.0005.500- 0.043 in- 4.539 in
155/90R1828.9846.102- 0.059 in- 3.937 in
225/60R1828.6308.858- 0.413 in- 1.181 in

What does the 255 mean in tire size?

This represents the treadwidth of the tire. The tread is 255mm wide, or 29.043 inches wide.

What does the 55 mean in tire size?

This represents the sidewall height of the tire, as a percentage of the width. The sidewall height is 55% of 255mm, or 140.25mm, which is 5.522 inches.

What does the 18 mean in tire size?

This represents the wheel diameter that this tire size fits on. This tire size is meant to fit a 18 inch wheel.



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