Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/12.5-18 | 33/12.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.02 (838.8) | 33.02 (838.72) | -0 (-0.08) -0% |
| Width inches (mm) | 12.52 (318) | 12.52 (318) | 0 (0) 0% |
| Circum. inches (mm) | 103.75 (2635.17) | 103.74 (2634.92) | -0.01 (-0.25) -0% |
| Sidewall Height inches (mm) | 7.51 (190.8) | 6.51 (165.36) | -1 (-25.44) -13.3% |
| Revolutions per mile (km) | 610.72 (379.48) | 610.78 (379.52) | 0.06 (0.04) 0% |
33/12.5-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20 mph (32.18 km/h) |
| 25 mph (40.23 km/h) | 25 mph (40.23 km/h) |
| 30 mph (48.28 km/h) | 30 mph (48.28 km/h) |
| 35 mph (56.33 km/h) | 35 mph (56.32 km/h) |
| 40 mph (64.37 km/h) | 40 mph (64.37 km/h) |
| 45 mph (72.42 km/h) | 45 mph (72.41 km/h) |
| 50 mph (80.47 km/h) | 50 mph (80.46 km/h) |
| 55 mph (88.51 km/h) | 54.99 mph (88.51 km/h) |
| 60 mph (96.56 km/h) | 59.99 mph (96.55 km/h) |
| 65 mph (104.61 km/h) | 64.99 mph (104.6 km/h) |
| 70 mph (112.65 km/h) | 69.99 mph (112.64 km/h) |
| 75 mph (120.7 km/h) | 74.99 mph (120.69 km/h) |
| 80 mph (128.75 km/h) | 79.99 mph (128.74 km/h) |
| 85 mph (136.79 km/h) | 84.99 mph (136.78 km/h) |
| 90 mph (144.84 km/h) | 89.99 mph (144.83 km/h) |
| 95 mph (152.89 km/h) | 94.99 mph (152.87 km/h) |
| 100 mph (160.93 km/h) | 99.99 mph (160.92 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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