What does 285/30R20 mean?
285/30R20 is a tire size with the following dimensions:
- 285 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.
285/30R20 Tire Conversion
Dimensions | Inches | Millimeters |
Tire Diameter | 26.7 in | 679 mm |
Section Width | 11.2 in | 285 mm |
Rim Height | 20 in | 508 mm |
Sidewall Height | 3.4 in | 85.5 mm |
Circumference | 84 in | 2133.1 mm |
Revolutions | 754.4 revs/mile |
FAQ About 285/30R20 Tire
How tall is a 285/30R20 tire?
The height (or diameter) of a 285/30R20 tire is 26.7 inches
How wide is a 285/30R20 tire?
The width of a 285/30R20 tire is 285 mm, which is about 11.2 inches.
What size rim fits a 285/30R20 tire?
A 285/30R20 tire fits on a rim that is 20 inches in diameter.
What does the 30 in a 285/30R20 tire mean?
The 30 in a 285/30R20 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 30% of its width.
Alternative Tire Sizes for 285/30R20
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 285/30R20:
Tire Size | Diameter | Rim |
---|---|---|
145/60R20 | 26.9″ (0.7%) | 20 x n/a |
145/65R20 | 27.4″ (2.6%) | 20 x n/a |
155/60R20 | 27.3″ (2.2%) | 20 x 4.5-5.5 |
225/35R20 | 26.2″ (-1.9%) | 20 x 7.5-9.0 |
225/40R20 | 27.1″ (1.5%) | 20 x 7.5-9.0 |
235/35R20 | 26.5″ (-0.7%) | 20 x 8.0-9.5 |
235/40R20 | 27.4″ (2.6%) | 20 x 8.0-9.5 |
245/35R20 | 26.8″ (0.4%) | 20 x 8.0-9.5 |
255/30R20 | 26.0″ (-2.6%) | 20 x 8.5-9.5 |
255/35R20 | 27.0″ (1.1%) | 20 x 8.5-10.0 |
265/30R20 | 26.3″ (-1.5%) | 20 x 9.0-10.0 |
265/35R20 | 27.3″ (2.2%) | 20 x 9.0-10.5 |
275/30R20 | 26.5″ (-0.7%) | 20 x 9.0-10.0 |
295/30R20 | 27.0″ (1.1%) | 20 x 10.0-11.0 |
305/25R20 | 26.0″ (-2.6%) | 20 x 10.5-11.5 |
305/30R20 | 27.2″ (1.9%) | 20 x 10.5-11.5 |
315/25R20 | 26.2″ (-1.9%) | 20 x 11.0-12.0 |
315/30R20 | 27.4″ (2.6%) | 20 x 10.5-11.5 |
325/25R20 | 26.4″ (-1.1%) | 20 x 11.5-12.5 |
335/25R20 | 26.6″ (-0.4%) | 20 x 11.5-12.5 |
345/25R20 | 26.8″ (0.4%) | 20 x 12.0-13.0 |