295/60R18
295/60R18 is uncommon as OEM fitment but appears as an aftermarket upsize option. At 31.94″ diameter with a 6.97″ sidewall (60% of section width), this size turns 631 revolutions per mile.
About 295/60R18
295/60R18 is less common as a factory fitment but is available as an aftermarket size, so SKU selection is narrower than mainstream OEM sizes. At 31.94″ overall diameter, 295/60R18 turns 631 revolutions per mile, which is the reference point the factory speedometer and odometer were calibrated against. The 60% aspect ratio gives it a balanced sidewall — enough compliance for daily comfort without vague steering. The 18″ rim pairing is typical for full-size truck, premium SUV, and sport-sedan platforms, so compatible wheels are easy to source new or used. Going one step shorter to 285/60R18 drops diameter by 1.48%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 275/65R18 adds 0.43% 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 31.94″ 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 aliases295/60R18
- Diameter
- 31.94″ / 811.2mm
- Section Width
- 11.61″
- Sidewall
- 6.97″ / 177mm
- Circumference
- 100.33″
- Revs/Mile
- 631
275/60R18
- Diameter
- 30.99″ / 787.2mm
- Section Width
- 10.83″
- Sidewall
- 6.5″ / 165mm
- Circumference
- 97.36″
- Revs/Mile
- 651
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 58.22 mph (93.7 km/h). Your speedometer reads 2.96% high versus actual speed.