305/60R20 tire size
305/60R20 in inches: 34.41" overall diameter — 12.01" wide, 7.20" sidewall.
Overall diameter 34.41 in 874 mm
Section width 12.01 in 305 mm
Sidewall height 7.20 in 183 mm
Revs / mile 586 speedo calibration
Full dimensions
| Measurement | Metric | Imperial |
|---|---|---|
| Overall diameter | 874 mm | 34.41 in |
| Section width | 305 mm | 12.01 in |
| Sidewall height | 183 mm | 7.20 in |
| Rim diameter | 508 mm | 20 in |
| Circumference | 2745.8 mm | 108.10 in |
| Revolutions per mile | 586.1 | |
| Aspect ratio | 60% | |
Compare 305/60R20 to similar sizes
Frequently asked questions
What is the overall diameter of a 305/60R20 tire?
A 305/60R20 tire has an overall diameter of 34.41 inches (874 mm).
How tall is a 305/60R20 tire?
The sidewall height is 183 mm (7.20 inches), and the overall diameter from the ground to the top of the tire is 34.41 inches.
How many revolutions per mile does a 305/60R20 tire make?
A 305/60R20 tire makes approximately 586 revolutions per mile. Your speedometer is calibrated to this number.
What rim size does a 305/60R20 tire fit?
A 305/60R20 tire is designed for a 20-inch rim (508 mm).
All dimensions calculated using standard ETRTO formulas. Always confirm fitment with your vehicle's door-placard and a qualified tire professional before purchasing.