225/70R16
225/70R16 is uncommon as OEM fitment but appears as an aftermarket upsize option. At 28.40″ diameter with a 6.20″ sidewall (70% of section width), this size turns 710 revolutions per mile.
About 225/70R16
225/70R16 is less common as a factory fitment but is available as an aftermarket size, so SKU selection is narrower than mainstream OEM sizes. At 28.40″ overall diameter, 225/70R16 turns 710 revolutions per mile, which is the reference point the factory speedometer and odometer were calibrated against. The 70% 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 235/65R16 drops diameter by 1.32%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 235/70R16 adds 1.94% 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 28.40″ 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 aliases225/70R16
- Diameter
- 28.4″ / 721.4mm
- Section Width
- 8.86″
- Sidewall
- 6.2″ / 157.5mm
- Circumference
- 89.23″
- Revs/Mile
- 710
205/70R16
- Diameter
- 27.3″ / 693.4mm
- Section Width
- 8.07″
- Sidewall
- 5.65″ / 143.5mm
- Circumference
- 85.76″
- Revs/Mile
- 739
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 57.67 mph (92.81 km/h). Your speedometer reads 3.88% high versus actual speed.