245/65R17
245/65R17 ships as an OEM size on the Jeep Cherokee. At 29.54″ diameter with a 6.27″ sidewall (65% of section width), this size turns 683 revolutions per mile.
About 245/65R17
Factory fitments for 245/65R17 include the Jeep Cherokee — meaning replacement tires in this size see steady demand and broad brand availability. At 29.54″ overall diameter, 245/65R17 turns 683 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 225/70R17 drops diameter by 0.47%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 235/70R17 adds 1.40% 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 29.54″ 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 aliases245/65R17
- Diameter
- 29.54″ / 750.3mm
- Section Width
- 9.65″
- Sidewall
- 6.27″ / 159.25mm
- Circumference
- 92.8″
- Revs/Mile
- 683
225/65R17
- Diameter
- 28.52″ / 724.3mm
- Section Width
- 8.86″
- Sidewall
- 5.76″ / 146.25mm
- Circumference
- 89.58″
- Revs/Mile
- 707
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 57.92 mph (93.21 km/h). Your speedometer reads 3.47% high versus actual speed.