255/45R17 tire size
255/45R17 in inches: 26.04" overall diameter — 10.04" wide, 4.52" sidewall.
Overall diameter 26.04 in 661.3 mm
Section width 10.04 in 255 mm
Sidewall height 4.52 in 114.75 mm
Revs / mile 775 speedo calibration
Full dimensions
| Measurement | Metric | Imperial |
|---|---|---|
| Overall diameter | 661.3 mm | 26.04 in |
| Section width | 255 mm | 10.04 in |
| Sidewall height | 114.75 mm | 4.52 in |
| Rim diameter | 431.8 mm | 17 in |
| Circumference | 2077.5 mm | 81.79 in |
| Revolutions per mile | 774.6 | |
| Aspect ratio | 45% | |
Compare 255/45R17 to similar sizes
Frequently asked questions
What is the overall diameter of a 255/45R17 tire?
A 255/45R17 tire has an overall diameter of 26.04 inches (661.3 mm).
How tall is a 255/45R17 tire?
The sidewall height is 114.75 mm (4.52 inches), and the overall diameter from the ground to the top of the tire is 26.04 inches.
How many revolutions per mile does a 255/45R17 tire make?
A 255/45R17 tire makes approximately 775 revolutions per mile. Your speedometer is calibrated to this number.
What rim size does a 255/45R17 tire fit?
A 255/45R17 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.