275/65R17
275/65R17 is uncommon as OEM fitment but appears as an aftermarket upsize option. At 31.07″ diameter with a 7.04″ sidewall (65% of section width), this size turns 649 revolutions per mile.
About 275/65R17
275/65R17 is less common as a factory fitment but is available as an aftermarket size, so SKU selection is narrower than mainstream OEM sizes. At 31.07″ overall diameter, 275/65R17 turns 649 revolutions per mile, which is the reference point the factory speedometer and odometer were calibrated against. The 65% aspect ratio gives it a balanced sidewall — enough compliance for daily comfort without vague steering. The 17″ rim pairing is typical for light-truck, crossover, and mid-size SUV applications, so compatible wheels are easy to source new or used. Going one step shorter to 255/70R17 drops diameter by 0.06%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 285/65R17 adds 1.65% diameter — also inside the safe window, with marginally taller ride height. If you are shopping for a direct replacement, any tire within roughly ±0.7″ of the 31.07″ stock diameter (about ±2% in percentage terms) will keep ABS, TPMS, and odometer readings inside the vehicle's designed tolerance.
Compare with another size
275/65R18 or "33" for inch aliases275/65R17
- Diameter
- 31.07″ / 789.3mm
- Section Width
- 10.83″
- Sidewall
- 7.04″ / 178.75mm
- Circumference
- 97.62″
- Revs/Mile
- 649
255/65R17
- Diameter
- 30.05″ / 763.3mm
- Section Width
- 10.04″
- Sidewall
- 6.53″ / 165.75mm
- Circumference
- 94.41″
- Revs/Mile
- 671
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 58.02 mph (93.38 km/h). Your speedometer reads 3.29% high versus actual speed.