Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/75-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.88 (733.5) | 33.03 (838.92) | 4.15 (105.42) 14.4% |
| Width inches (mm) | 9.25 (235) | 12.52 (318) | 3.27 (83) 35.3% |
| Circum. inches (mm) | 90.72 (2304.36) | 103.76 (2635.54) | 13.04 (331.19) 14.4% |
| Sidewall Height inches (mm) | 6.94 (176.25) | 9.01 (228.96) | 2.08 (52.71) 29.9% |
| Revolutions per mile (km) | 698.39 (433.96) | 610.63 (379.43) | -87.76 (-54.53) -12.6% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.87 mph (36.81 km/h) |
| 25 mph (40.23 km/h) | 28.59 mph (46.02 km/h) |
| 30 mph (48.28 km/h) | 34.31 mph (55.22 km/h) |
| 35 mph (56.33 km/h) | 40.03 mph (64.42 km/h) |
| 40 mph (64.37 km/h) | 45.75 mph (73.63 km/h) |
| 45 mph (72.42 km/h) | 51.47 mph (82.83 km/h) |
| 50 mph (80.47 km/h) | 57.19 mph (92.03 km/h) |
| 55 mph (88.51 km/h) | 62.9 mph (101.24 km/h) |
| 60 mph (96.56 km/h) | 68.62 mph (110.44 km/h) |
| 65 mph (104.61 km/h) | 74.34 mph (119.64 km/h) |
| 70 mph (112.65 km/h) | 80.06 mph (128.85 km/h) |
| 75 mph (120.7 km/h) | 85.78 mph (138.05 km/h) |
| 80 mph (128.75 km/h) | 91.5 mph (147.25 km/h) |
| 85 mph (136.79 km/h) | 97.22 mph (156.45 km/h) |
| 90 mph (144.84 km/h) | 102.93 mph (165.66 km/h) |
| 95 mph (152.89 km/h) | 108.65 mph (174.86 km/h) |
| 100 mph (160.93 km/h) | 114.37 mph (184.06 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1805 | 1944 | 2030 | 2123 | 2189 | 2261 | 2347 | 2466 | 2585 | 2718 | 2824 | 3015 | 3227 | 3392 | 3498 | 3558 | 3776 | 4080 | 4741 |
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