Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/80-20 | 33/12.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 38.58 (980) | 33.02 (838.72) | -5.56 (-141.28) -14.4% |
| Width inches (mm) | 11.61 (295) | 12.52 (318) | 0.91 (23) 7.8% |
| Circum. inches (mm) | 121.21 (3078.76) | 103.74 (2634.92) | -17.47 (-443.84) -14.4% |
| Sidewall Height inches (mm) | 9.29 (236) | 6.51 (165.36) | -2.78 (-70.64) -29.9% |
| Revolutions per mile (km) | 522.72 (324.81) | 610.78 (379.52) | 88.05 (54.71) 16.8% |
33/12.5-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.12 mph (27.55 km/h) |
| 25 mph (40.23 km/h) | 21.4 mph (34.43 km/h) |
| 30 mph (48.28 km/h) | 25.68 mph (41.32 km/h) |
| 35 mph (56.33 km/h) | 29.95 mph (48.21 km/h) |
| 40 mph (64.37 km/h) | 34.23 mph (55.09 km/h) |
| 45 mph (72.42 km/h) | 38.51 mph (61.98 km/h) |
| 50 mph (80.47 km/h) | 42.79 mph (68.87 km/h) |
| 55 mph (88.51 km/h) | 47.07 mph (75.75 km/h) |
| 60 mph (96.56 km/h) | 51.35 mph (82.64 km/h) |
| 65 mph (104.61 km/h) | 55.63 mph (89.53 km/h) |
| 70 mph (112.65 km/h) | 59.91 mph (96.41 km/h) |
| 75 mph (120.7 km/h) | 64.19 mph (103.3 km/h) |
| 80 mph (128.75 km/h) | 68.47 mph (110.19 km/h) |
| 85 mph (136.79 km/h) | 72.75 mph (117.07 km/h) |
| 90 mph (144.84 km/h) | 77.03 mph (123.96 km/h) |
| 95 mph (152.89 km/h) | 81.3 mph (130.85 km/h) |
| 100 mph (160.93 km/h) | 85.58 mph (137.73 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 | 1806 | 1945 | 2031 | 2123 | 2189 | 2262 | 2348 | 2467 | 2586 | 2718 | 2824 | 3016 | 3228 | 3393 | 3499 | 3558 | 3777 | 4081 | 4742 |
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