Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/75-17 | 33/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.01 (889.3) | 33.03 (838.84) | -1.99 (-50.46) -5.7% |
| Width inches (mm) | 12.01 (305) | 12.52 (318) | 0.51 (13) 4.3% |
| Circum. inches (mm) | 109.99 (2793.82) | 103.75 (2635.29) | -6.24 (-158.52) -5.7% |
| Sidewall Height inches (mm) | 9.01 (228.75) | 8.01 (203.52) | -0.99 (-25.23) -11% |
| Revolutions per mile (km) | 576.04 (357.93) | 610.69 (379.46) | 34.65 (21.53) 6% |
33/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.87 mph (30.36 km/h) |
| 25 mph (40.23 km/h) | 23.58 mph (37.95 km/h) |
| 30 mph (48.28 km/h) | 28.3 mph (45.54 km/h) |
| 35 mph (56.33 km/h) | 33.01 mph (53.13 km/h) |
| 40 mph (64.37 km/h) | 37.73 mph (60.72 km/h) |
| 45 mph (72.42 km/h) | 42.45 mph (68.31 km/h) |
| 50 mph (80.47 km/h) | 47.16 mph (75.9 km/h) |
| 55 mph (88.51 km/h) | 51.88 mph (83.49 km/h) |
| 60 mph (96.56 km/h) | 56.6 mph (91.08 km/h) |
| 65 mph (104.61 km/h) | 61.31 mph (98.67 km/h) |
| 70 mph (112.65 km/h) | 66.03 mph (106.26 km/h) |
| 75 mph (120.7 km/h) | 70.74 mph (113.85 km/h) |
| 80 mph (128.75 km/h) | 75.46 mph (121.44 km/h) |
| 85 mph (136.79 km/h) | 80.18 mph (129.03 km/h) |
| 90 mph (144.84 km/h) | 84.89 mph (136.62 km/h) |
| 95 mph (152.89 km/h) | 89.61 mph (144.21 km/h) |
| 100 mph (160.93 km/h) | 94.33 mph (151.8 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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