185/70R15 tire size
185/70R15 in inches: 25.20" overall diameter — 7.28" wide, 5.10" sidewall.
Overall diameter 25.20 in 640 mm
Section width 7.28 in 185 mm
Sidewall height 5.10 in 129.5 mm
Revs / mile 800 speedo calibration
Full dimensions
| Measurement | Metric | Imperial |
|---|---|---|
| Overall diameter | 640 mm | 25.20 in |
| Section width | 185 mm | 7.28 in |
| Sidewall height | 129.5 mm | 5.10 in |
| Rim diameter | 381 mm | 15 in |
| Circumference | 2010.6 mm | 79.16 in |
| Revolutions per mile | 800.4 | |
| Aspect ratio | 70% | |
Compare 185/70R15 to similar sizes
Frequently asked questions
What is the overall diameter of a 185/70R15 tire?
A 185/70R15 tire has an overall diameter of 25.20 inches (640 mm).
How tall is a 185/70R15 tire?
The sidewall height is 129.5 mm (5.10 inches), and the overall diameter from the ground to the top of the tire is 25.20 inches.
How many revolutions per mile does a 185/70R15 tire make?
A 185/70R15 tire makes approximately 800 revolutions per mile. Your speedometer is calibrated to this number.
What rim size does a 185/70R15 tire fit?
A 185/70R15 tire is designed for a 15-inch rim (381 mm).
All dimensions calculated using standard ETRTO formulas. Always confirm fitment with your vehicle's door-placard and a qualified tire professional before purchasing.