What does 275/25R30 mean?
275/25R30 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.
- 25 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.
- 30 is the diameter of the wheel in inches, on which the tire is to be mounted.
275/25R30 Tire Conversion
| Dimensions | Inches | Millimeters |
| Tire Diameter | 35.4 in | 899.5 mm |
| Section Width | 10.8 in | 275 mm |
| Rim Height | 30 in | 762 mm |
| Sidewall Height | 2.7 in | 68.8 mm |
| Circumference | 111.3 in | 2825.9 mm |
| Revolutions | 569.5 revs/mile | |
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FAQ About 275/25R30 Tire
How tall is a 275/25R30 tire?
The height (or diameter) of a 275/25R30 tire is 35.4 inches
How wide is a 275/25R30 tire?
The width of a 275/25R30 tire is 275 mm, which is about 10.8 inches.
What size rim fits a 275/25R30 tire?
A 275/25R30 tire fits on a rim that is 30 inches in diameter.
What does the 25 in a 275/25R30 tire mean?
The 25 in a 275/25R30 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 25% of its width.
Alternative Tire Sizes for 275/25R30
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 275/25R30:
| Tire Size | Diameter | Rim |
|---|---|---|
| 255/30R30 | 36.0″ (1.7%) | 30 x n/a |
| 315/20R30 | 35.0″ (-1.1%) | 30 x n/a |