235/55R16
235/55R16 is uncommon as OEM fitment but appears as an aftermarket upsize option. At 26.18″ diameter with a 5.09″ sidewall (55% of section width), this size turns 770 revolutions per mile.
About 235/55R16
235/55R16 is less common as a factory fitment but is available as an aftermarket size, so SKU selection is narrower than mainstream OEM sizes. At 26.18″ overall diameter, 235/55R16 turns 770 revolutions per mile, which is the reference point the factory speedometer and odometer were calibrated against. The 55% aspect ratio gives it a moderate sidewall suited to sporty street driving and responsive turn-in. 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 215/60R16 drops diameter by 0.08%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 225/60R16 adds 1.73% 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 26.18″ 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 aliases235/55R16
- Diameter
- 26.18″ / 664.9mm
- Section Width
- 9.25″
- Sidewall
- 5.09″ / 129.25mm
- Circumference
- 82.24″
- Revs/Mile
- 770
215/55R16
- Diameter
- 25.31″ / 642.9mm
- Section Width
- 8.46″
- Sidewall
- 4.66″ / 118.25mm
- Circumference
- 79.52″
- Revs/Mile
- 797
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 58.01 mph (93.37 km/h). Your speedometer reads 3.31% high versus actual speed.