What does 275/50R18 mean?
275/50R18 is a tire size with the following dimensions:
- 275 is the width of the tire in millimeters. This number also indicates the appropriate width of the rim on which the tire should be mounted.
- 50 is the aspect ratio, which is the ratio of the tire's height to its width. This affects the tire's handling and ride comfort
- R indicates the tire's construction type, meaning it has a radial construction. This provides stability and precision to the tire.
- 18 is the diameter of the wheel in inches, on which the tire is to be mounted.
275/50R18 Tire Conversion
Dimensions | Inches | Millimeters |
Tire Diameter | 28.8 in | 732.2 mm |
Section Width | 10.8 in | 275 mm |
Rim Height | 18 in | 457 mm |
Sidewall Height | 5.4 in | 137.5 mm |
Circumference | 90.6 in | 2300.3 mm |
Revolutions | 699.6 revs/mile |
FAQ About 275/50R18 Tire
How tall is a 275/50R18 tire?
The height (or diameter) of a 275/50R18 tire is 28.8 inches
How wide is a 275/50R18 tire?
The width of a 275/50R18 tire is 275 mm, which is about 10.8 inches.
What size rim fits a 275/50R18 tire?
A 275/50R18 tire fits on a rim that is 18 inches in diameter.
What does the 50 in a 275/50R18 tire mean?
The 50 in a 275/50R18 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 50% of its width.
Alternative Tire Sizes for 275/50R18
Typically, it's recommended to choose a tire with a diameter (height) within 3% of the original equipment manufacturer (OEM) tire size.
However, keep in mind that this is a general guideline and not an absolute rule.
Here are some tire sizes that are compatible with the 275/50R18:
Tire Size | Diameter | Rim |
---|---|---|
305/45R18 | 28.8″ (Equal) | 18 x 9.5-11.5 |
155/85R18 | 28.4″ (-1.4%) | 18 x n/a |
155/90R18 | 29.0″ (0.7%) | 18 x n/a |
175/80R18 | 29.0″ (0.7%) | 18 x n/a |
225/60R18 | 28.6″ (-0.7%) | 18 x 6.0-8.0 |
225/65R18 | 29.5″ (2.4%) | 18 x 6.0-8.0 |
235/55R18 | 28.2″ (-2.1%) | 18 x 6.5-8.5 |
235/60R18 | 29.1″ (1.0%) | 18 x 6.5-8.5 |
245/55R18 | 28.6″ (-0.7%) | 18 x 7.0-8.5 |
245/60R18 | 29.6″ (2.8%) | 18 x 7.0-8.5 |
255/50R18 | 28.0″ (-2.8%) | 18 x 7.0-9.0 |
255/55R18 | 29.0″ (0.7%) | 18 x 7.0-9.0 |
265/50R18 | 28.4″ (-1.4%) | 18 x 7.5-9.5 |
265/55R18 | 29.5″ (2.4%) | 18 x 7.5-9.5 |
285/45R18 | 28.1″ (-2.4%) | 18 x 9.0-10.5 |
285/50R18 | 29.2″ (1.4%) | 18 x 8.0-10.0 |
295/45R18 | 28.5″ (-1.0%) | 18 x 9.5-11.0 |
325/45R18 | 29.5″ (2.4%) | 18 x n/a |