What does 255/30R20 mean?
255/30R20 is a tire size with the following dimensions:
- 255 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.
- 30 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.
- 20 is the diameter of the wheel in inches, on which the tire is to be mounted.
255/30R20 Tire Conversion
Dimensions | Inches | Millimeters |
Tire Diameter | 26 in | 661 mm |
Section Width | 10 in | 255 mm |
Rim Height | 20 in | 508 mm |
Sidewall Height | 3 in | 76.5 mm |
Circumference | 81.8 in | 2076.6 mm |
Revolutions | 775 revs/mile |
FAQ About 255/30R20 Tire
How tall is a 255/30R20 tire?
The height (or diameter) of a 255/30R20 tire is 26 inches
How wide is a 255/30R20 tire?
The width of a 255/30R20 tire is 255 mm, which is about 10 inches.
What size rim fits a 255/30R20 tire?
A 255/30R20 tire fits on a rim that is 20 inches in diameter.
What does the 30 in a 255/30R20 tire mean?
The 30 in a 255/30R20 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 30% of its width.
Alternative Tire Sizes for 255/30R20
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 255/30R20:
Tire Size | Diameter | Rim |
---|---|---|
305/25R20 | 26.0″ (Equal) | 20 x 10.5-11.5 |
225/30R20 | 25.3″ (-2.7%) | 20 x 8 |
225/35R20 | 26.2″ (0.8%) | 20 x 7.5-9.0 |
235/30R20 | 25.6″ (-1.5%) | 20 x 8.5 |
235/35R20 | 26.5″ (1.9%) | 20 x 8.0-9.5 |
245/30R20 | 25.8″ (-0.8%) | 20 x 8.0-9.0 |
265/30R20 | 26.3″ (1.2%) | 20 x 9.0-10.0 |
275/25R20 | 25.4″ (-2.3%) | 20 x 10 |
275/30R20 | 26.5″ (1.9%) | 20 x 9.0-10.0 |
285/25R20 | 25.6″ (-1.5%) | 20 x 10.5 |
285/30R20 | 26.7″ (2.7%) | 20 x 9.5-10.5 |
295/25R20 | 25.8″ (-0.8%) | 20 x 10.0-11.0 |
315/25R20 | 26.2″ (0.8%) | 20 x 11.0-12.0 |
325/25R20 | 26.4″ (1.5%) | 20 x 11.5-12.5 |
335/25R20 | 26.6″ (2.3%) | 20 x 11.5-12.5 |