245/75R16
245/75R16 ships as an OEM size on the Toyota Tacoma. At 30.47″ diameter with a 7.23″ sidewall (75% of section width), this size turns 662 revolutions per mile.
About 245/75R16
Factory fitments for 245/75R16 include the Toyota Tacoma — meaning replacement tires in this size see steady demand and broad brand availability. At 30.47″ overall diameter, 245/75R16 turns 662 revolutions per mile, which is the reference point the factory speedometer and odometer were calibrated against. The 75% aspect ratio gives it a tall, compliant sidewall that absorbs bumps well and protects rims off-road. The 16″ 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 255/70R16 drops diameter by 1.36%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 265/70R16 adds 0.45% 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 30.47″ 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 aliases245/75R16
- Diameter
- 30.47″ / 773.9mm
- Section Width
- 9.65″
- Sidewall
- 7.23″ / 183.75mm
- Circumference
- 95.72″
- Revs/Mile
- 662
235/70R16
- Diameter
- 28.95″ / 735.4mm
- Section Width
- 9.25″
- Sidewall
- 6.48″ / 164.5mm
- Circumference
- 90.96″
- Revs/Mile
- 697
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 57.02 mph (91.76 km/h). Your speedometer reads 4.97% high versus actual speed.