33x10.50R15 vs 33x12.50R15
33x12.50R15 is a safe swap for 33x10.50R15 by the usual ±3% rule: the diameter differs by 0.00%.
Side by side
| 33x10.50R15 | 33x12.50R15 | Difference | |
|---|---|---|---|
| Overall diameter | 33.00" | 33.00" | 0.00" (0.00%) |
| Section width | 267 mm | 318 mm | +51 mm |
| Sidewall | 9.00" | 9.00" | 0.00" |
| Rim | 15" | 15" | same |
| Circumference | 103.7" | 103.7" | 0.0" |
| Revs per mile | 611 | 611 | 0 |
| Ride height | — | — | 0.00" |
| Speedometer reads 60 mph | 60.0 | 60.0 | 0.0 mph |
Speedometer and odometer
With 33x12.50R15 on a car calibrated for 33x10.50R15, the speedometer reads 60.0 mph when you're really doing 60, and the odometer over-counts by 0.0%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.0 mph |
| 45 mph | 45.0 mph |
| 60 mph | 60.0 mph |
| 70 mph | 70.0 mph |
| 80 mph | 80.0 mph |
Other sizes close to 33x10.50R15
Questions
Can I replace 33x10.50R15 with 33x12.50R15?
33x12.50R15 is a safe swap for 33x10.50R15 by the usual ±3% rule: the diameter differs by 0.00%.
What's the difference between 33x10.50R15 and 33x12.50R15?
33x12.50R15 is 0.00" taller and 51 mm wider; the sidewall is 0.00". At an indicated 60 mph you'd actually be doing 60.0 mph.
Will 33x12.50R15 fit on 33x10.50R15 wheels?
Both use a 15" rim, so the wheel diameter matches; check the wheel's width range for a 318 mm tire and the fender clearance.