Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/70-15 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.06 (738) | 33.03 (838.92) | 3.97 (100.92) 13.7% |
| Width inches (mm) | 10.04 (255) | 12.52 (318) | 2.48 (63) 24.7% |
| Circum. inches (mm) | 91.28 (2318.5) | 103.76 (2635.54) | 12.48 (317.05) 13.7% |
| Sidewall Height inches (mm) | 7.03 (178.5) | 9.01 (228.96) | 1.99 (50.46) 28.3% |
| Revolutions per mile (km) | 694.13 (431.31) | 610.63 (379.43) | -83.5 (-51.89) -12% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.73 mph (36.59 km/h) |
| 25 mph (40.23 km/h) | 28.42 mph (45.74 km/h) |
| 30 mph (48.28 km/h) | 34.1 mph (54.88 km/h) |
| 35 mph (56.33 km/h) | 39.79 mph (64.03 km/h) |
| 40 mph (64.37 km/h) | 45.47 mph (73.18 km/h) |
| 45 mph (72.42 km/h) | 51.15 mph (82.32 km/h) |
| 50 mph (80.47 km/h) | 56.84 mph (91.47 km/h) |
| 55 mph (88.51 km/h) | 62.52 mph (100.62 km/h) |
| 60 mph (96.56 km/h) | 68.2 mph (109.77 km/h) |
| 65 mph (104.61 km/h) | 73.89 mph (118.91 km/h) |
| 70 mph (112.65 km/h) | 79.57 mph (128.06 km/h) |
| 75 mph (120.7 km/h) | 85.26 mph (137.21 km/h) |
| 80 mph (128.75 km/h) | 90.94 mph (146.35 km/h) |
| 85 mph (136.79 km/h) | 96.62 mph (155.5 km/h) |
| 90 mph (144.84 km/h) | 102.31 mph (164.65 km/h) |
| 95 mph (152.89 km/h) | 107.99 mph (173.8 km/h) |
| 100 mph (160.93 km/h) | 113.67 mph (182.94 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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