What does 145/90R17 mean?
145/90R17 is a tire size with the following dimensions:
- 145 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.
- 90 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.
- 17 is the diameter of the wheel in inches, on which the tire is to be mounted.
145/90R17 Tire Conversion
| Dimensions | Inches | Millimeters |
| Tire Diameter | 27.3 in | 692.8 mm |
| Section Width | 5.7 in | 145 mm |
| Rim Height | 17 in | 431 mm |
| Sidewall Height | 5.1 in | 130.5 mm |
| Circumference | 85.7 in | 2176.5 mm |
| Revolutions | 739.4 revs/mile | |
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FAQ About 145/90R17 Tire
How tall is a 145/90R17 tire?
The height (or diameter) of a 145/90R17 tire is 27.3 inches
How wide is a 145/90R17 tire?
The width of a 145/90R17 tire is 145 mm, which is about 5.7 inches.
What size rim fits a 145/90R17 tire?
A 145/90R17 tire fits on a rim that is 17 inches in diameter.
What does the 90 in a 145/90R17 tire mean?
The 90 in a 145/90R17 tire refers to the aspect ratio, meaning the height of the tire's sidewall is 90% of its width.
Alternative Tire Sizes for 145/90R17
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 145/90R17:
| Tire Size | Diameter | Rim |
|---|---|---|
| 135/90R17 | 26.6″ (-2.6%) | 17 x n/a |
| 155/80R17 | 26.8″ (-1.8%) | 17 x n/a |
| 155/90R17 | 28.0″ (2.6%) | 17 x n/a |
| 165/80R17 | 27.4″ (0.4%) | 17 x n/a |
| 205/60R17 | 26.7″ (-2.2%) | 17 x 5.5-7.5 |
| 205/65R17 | 27.5″ (0.7%) | 17 x 5.5-7.5 |
| 215/60R17 | 27.2″ (-0.4%) | 17 x 6.0-7.5 |
| 215/65R17 | 28.0″ (2.6%) | 17 x 6.0-7.5 |
| 225/55R17 | 26.7″ (-2.2%) | 17 x 6.0-8.0 |
| 225/60R17 | 27.6″ (1.1%) | 17 x 6.0-8.0 |
| 235/55R17 | 27.2″ (-0.4%) | 17 x 6.5-8.5 |
| 235/60R17 | 28.1″ (2.9%) | 17 x 6.5-8.5 |
| 245/50R17 | 26.6″ (-2.6%) | 17 x 7.0-8.5 |
| 245/55R17 | 27.6″ (1.1%) | 17 x 7.0-8.5 |
| 255/50R17 | 27.0″ (-1.1%) | 17 x 7.0-9.0 |
| 255/55R17 | 28.0″ (2.6%) | 17 x 7.0-9.0 |
| 275/50R17 | 27.8″ (1.8%) | 17 x 7.5-9.5 |
| 295/45R17 | 27.5″ (0.7%) | 17 x n/a |
| 305/45R17 | 27.8″ (1.8%) | 17 x 9.5-11.5 |
| 345/40R17 | 27.9″ (2.2%) | 17 x 11.5-13.5 |