245/75R16 vs 275/70R16
275/70R16 is a safe swap for 245/75R16 by the usual ±3% rule: the diameter differs by +2.26%.
Speedometer and odometer
With 275/70R16 on a car calibrated for 245/75R16, the speedometer reads 58.7 mph when you're really doing 60, and the odometer under-counts by 2.3%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.7 mph |
| 45 mph | 46.0 mph |
| 60 mph | 61.4 mph |
| 70 mph | 71.6 mph |
| 80 mph | 81.8 mph |
Other sizes close to 245/75R16
- 245/75R16 vs 265/75R16+3.88%
- 245/75R16 vs 245/70R17+0.12%
- 245/75R16 vs 225/75R16-3.88%
- 245/75R16 vs 265/65R17+0.31%
- 245/75R16 vs 265/70R16+0.45%
- 245/75R16 vs 235/70R16-4.97%
- 245/75R16 vs 235/85R16+4.13%
- 245/75R16 vs 245/70R16-3.17%
- 245/75R16 vs 215/85R16-0.26%
- 245/75R16 vs 255/70R16-1.36%
- 245/75R16 vs 235/75R16-1.94%
- 245/75R16 vs 255/65R16-4.65%
Questions
Can I replace 245/75R16 with 275/70R16?
275/70R16 is a safe swap for 245/75R16 by the usual ±3% rule: the diameter differs by +2.26%.
What's the difference between 245/75R16 and 275/70R16?
275/70R16 is 0.69" taller and 30 mm wider; the sidewall is +0.34". At an indicated 60 mph you'd actually be doing 61.4 mph.
Will 275/70R16 fit on 245/75R16 wheels?
Both use a 16" rim, so the wheel diameter matches; check the wheel's width range for a 275 mm tire and the fender clearance.