185/55R17 tire size
185/55R17 in inches: 25.01" overall diameter — 7.28" wide, 4.01" sidewall.
Overall diameter 25.01 in 635.3 mm
Section width 7.28 in 185 mm
Sidewall height 4.01 in 101.75 mm
Revs / mile 806 speedo calibration
Full dimensions
| Measurement | Metric | Imperial |
|---|---|---|
| Overall diameter | 635.3 mm | 25.01 in |
| Section width | 185 mm | 7.28 in |
| Sidewall height | 101.75 mm | 4.01 in |
| Rim diameter | 431.8 mm | 17 in |
| Circumference | 1995.8 mm | 78.58 in |
| Revolutions per mile | 806.4 | |
| Aspect ratio | 55% | |
Compare 185/55R17 to similar sizes
Frequently asked questions
What is the overall diameter of a 185/55R17 tire?
A 185/55R17 tire has an overall diameter of 25.01 inches (635.3 mm).
How tall is a 185/55R17 tire?
The sidewall height is 101.75 mm (4.01 inches), and the overall diameter from the ground to the top of the tire is 25.01 inches.
How many revolutions per mile does a 185/55R17 tire make?
A 185/55R17 tire makes approximately 806 revolutions per mile. Your speedometer is calibrated to this number.
What rim size does a 185/55R17 tire fit?
A 185/55R17 tire is designed for a 17-inch rim (431.8 mm).
All dimensions calculated using standard ETRTO formulas. Always confirm fitment with your vehicle's door-placard and a qualified tire professional before purchasing.