285/60R18 tire size
285/60R18 in inches: 31.46" overall diameter — 11.22" wide, 6.73" sidewall.
Overall diameter 31.46 in 799.2 mm
Section width 11.22 in 285 mm
Sidewall height 6.73 in 171 mm
Revs / mile 641 speedo calibration
Full dimensions
| Measurement | Metric | Imperial |
|---|---|---|
| Overall diameter | 799.2 mm | 31.46 in |
| Section width | 285 mm | 11.22 in |
| Sidewall height | 171 mm | 6.73 in |
| Rim diameter | 457.2 mm | 18 in |
| Circumference | 2510.8 mm | 98.85 in |
| Revolutions per mile | 641.0 | |
| Aspect ratio | 60% | |
Compare 285/60R18 to similar sizes
Frequently asked questions
What is the overall diameter of a 285/60R18 tire?
A 285/60R18 tire has an overall diameter of 31.46 inches (799.2 mm).
How tall is a 285/60R18 tire?
The sidewall height is 171 mm (6.73 inches), and the overall diameter from the ground to the top of the tire is 31.46 inches.
How many revolutions per mile does a 285/60R18 tire make?
A 285/60R18 tire makes approximately 641 revolutions per mile. Your speedometer is calibrated to this number.
What rim size does a 285/60R18 tire fit?
A 285/60R18 tire is designed for a 18-inch rim (457.2 mm).
All dimensions calculated using standard ETRTO formulas. Always confirm fitment with your vehicle's door-placard and a qualified tire professional before purchasing.