215/85R16 vs 275/70R16
275/70R16 is a safe swap for 215/85R16 by the usual ±3% rule: the diameter differs by +2.53%.
Speedometer and odometer
With 275/70R16 on a car calibrated for 215/85R16, the speedometer reads 58.5 mph when you're really doing 60, and the odometer under-counts by 2.5%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.8 mph |
| 45 mph | 46.1 mph |
| 60 mph | 61.5 mph |
| 70 mph | 71.8 mph |
| 80 mph | 82.0 mph |
Other sizes close to 215/85R16
- 215/85R16 vs 265/75R16+4.15%
- 215/85R16 vs 245/70R17+0.38%
- 215/85R16 vs 245/75R16+0.26%
- 215/85R16 vs 225/75R16-3.63%
- 215/85R16 vs 265/65R17+0.57%
- 215/85R16 vs 265/70R16+0.71%
- 215/85R16 vs 235/70R16-4.73%
- 215/85R16 vs 235/85R16+4.40%
- 215/85R16 vs 245/70R16-2.91%
- 215/85R16 vs 255/70R16-1.10%
- 215/85R16 vs 235/75R16-1.68%
- 215/85R16 vs 255/65R16-4.40%
Questions
Can I replace 215/85R16 with 275/70R16?
275/70R16 is a safe swap for 215/85R16 by the usual ±3% rule: the diameter differs by +2.53%.
What's the difference between 215/85R16 and 275/70R16?
275/70R16 is 0.77" taller and 60 mm wider; the sidewall is +0.38". At an indicated 60 mph you'd actually be doing 61.5 mph.
Will 275/70R16 fit on 215/85R16 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.