Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/75-17 | 33/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.83 (859.3) | 33.03 (838.84) | -0.81 (-20.46) -2.4% |
| Width inches (mm) | 11.22 (285) | 12.52 (318) | 1.3 (33) 11.6% |
| Circum. inches (mm) | 106.28 (2699.57) | 103.75 (2635.29) | -2.53 (-64.28) -2.4% |
| Sidewall Height inches (mm) | 8.42 (213.75) | 8.01 (203.52) | -0.4 (-10.23) -4.8% |
| Revolutions per mile (km) | 596.15 (370.43) | 610.69 (379.46) | 14.54 (9.04) 2.4% |
33/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.52 mph (31.42 km/h) |
| 25 mph (40.23 km/h) | 24.4 mph (39.28 km/h) |
| 30 mph (48.28 km/h) | 29.29 mph (47.13 km/h) |
| 35 mph (56.33 km/h) | 34.17 mph (54.99 km/h) |
| 40 mph (64.37 km/h) | 39.05 mph (62.84 km/h) |
| 45 mph (72.42 km/h) | 43.93 mph (70.7 km/h) |
| 50 mph (80.47 km/h) | 48.81 mph (78.55 km/h) |
| 55 mph (88.51 km/h) | 53.69 mph (86.41 km/h) |
| 60 mph (96.56 km/h) | 58.57 mph (94.26 km/h) |
| 65 mph (104.61 km/h) | 63.45 mph (102.12 km/h) |
| 70 mph (112.65 km/h) | 68.33 mph (109.97 km/h) |
| 75 mph (120.7 km/h) | 73.21 mph (117.83 km/h) |
| 80 mph (128.75 km/h) | 78.1 mph (125.68 km/h) |
| 85 mph (136.79 km/h) | 82.98 mph (133.54 km/h) |
| 90 mph (144.84 km/h) | 87.86 mph (141.39 km/h) |
| 95 mph (152.89 km/h) | 92.74 mph (149.25 km/h) |
| 100 mph (160.93 km/h) | 97.62 mph (157.1 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 | 2262 | 2348 | 2467 | 2586 | 2718 | 2824 | 3016 | 3227 | 3393 | 3498 | 3558 | 3776 | 4080 | 4742 |
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