255/70R16 vs 265/70R16
265/70R16 is a safe swap for 255/70R16 by the usual ±3% rule: the diameter differs by +1.83%.
Speedometer and odometer
With 265/70R16 on a car calibrated for 255/70R16, the speedometer reads 58.9 mph when you're really doing 60, and the odometer under-counts by 1.8%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.6 mph |
| 45 mph | 45.8 mph |
| 60 mph | 61.1 mph |
| 70 mph | 71.3 mph |
| 80 mph | 81.5 mph |
Other sizes close to 255/70R16
- 255/70R16 vs 245/75R16+1.38%
- 255/70R16 vs 225/75R16-2.55%
- 255/70R16 vs 235/70R16-3.67%
- 255/70R16 vs 245/70R16-1.83%
- 255/70R16 vs 255/65R17-0.01%
- 255/70R16 vs 215/85R16+1.11%
- 255/70R16 vs 30x9.50R15-0.18%
- 255/70R16 vs 235/70R17-0.34%
- 255/70R16 vs 235/75R16-0.59%
- 255/70R16 vs 255/65R16-3.34%
- 255/70R16 vs 275/70R16+3.67%
- 255/70R16 vs 225/75R17+0.77%
Questions
Can I replace 255/70R16 with 265/70R16?
265/70R16 is a safe swap for 255/70R16 by the usual ±3% rule: the diameter differs by +1.83%.
What's the difference between 255/70R16 and 265/70R16?
265/70R16 is 0.55" taller and 10 mm wider; the sidewall is +0.28". At an indicated 60 mph you'd actually be doing 61.1 mph.
Will 265/70R16 fit on 255/70R16 wheels?
Both use a 16" rim, so the wheel diameter matches; check the wheel's width range for a 265 mm tire and the fender clearance.