295/65R18
295/65R18 is uncommon as OEM fitment but appears as an aftermarket upsize option. At 33.10″ diameter with a 7.55″ sidewall (65% of section width), this size turns 609 revolutions per mile.
About 295/65R18
295/65R18 is less common as a factory fitment but is available as an aftermarket size, so SKU selection is narrower than mainstream OEM sizes. At 33.10″ overall diameter, 295/65R18 turns 609 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 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 285/65R18 drops diameter by 1.55%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 275/70R18 adds 0.18% 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 33.10″ 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 aliases295/65R18
- Diameter
- 33.1″ / 840.7mm
- Section Width
- 11.61″
- Sidewall
- 7.55″ / 191.75mm
- Circumference
- 103.98″
- Revs/Mile
- 609
275/65R18
- Diameter
- 32.07″ / 814.7mm
- Section Width
- 10.83″
- Sidewall
- 7.04″ / 178.75mm
- Circumference
- 100.77″
- Revs/Mile
- 629
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 58.14 mph (93.57 km/h). Your speedometer reads 3.09% high versus actual speed.