Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/65-17 | 33/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.59 (802.3) | 33.03 (838.84) | 1.44 (36.54) 4.6% |
| Width inches (mm) | 11.22 (285) | 12.52 (318) | 1.3 (33) 11.6% |
| Circum. inches (mm) | 99.23 (2520.5) | 103.75 (2635.29) | 4.52 (114.79) 4.6% |
| Sidewall Height inches (mm) | 7.29 (185.25) | 8.01 (203.52) | 0.72 (18.27) 9.9% |
| Revolutions per mile (km) | 638.5 (396.75) | 610.69 (379.46) | -27.81 (-17.28) -4.4% |
33/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.91 mph (33.65 km/h) |
| 25 mph (40.23 km/h) | 26.14 mph (42.07 km/h) |
| 30 mph (48.28 km/h) | 31.37 mph (50.48 km/h) |
| 35 mph (56.33 km/h) | 36.59 mph (58.89 km/h) |
| 40 mph (64.37 km/h) | 41.82 mph (67.31 km/h) |
| 45 mph (72.42 km/h) | 47.05 mph (75.72 km/h) |
| 50 mph (80.47 km/h) | 52.28 mph (84.13 km/h) |
| 55 mph (88.51 km/h) | 57.5 mph (92.55 km/h) |
| 60 mph (96.56 km/h) | 62.73 mph (100.96 km/h) |
| 65 mph (104.61 km/h) | 67.96 mph (109.37 km/h) |
| 70 mph (112.65 km/h) | 73.19 mph (117.79 km/h) |
| 75 mph (120.7 km/h) | 78.42 mph (126.2 km/h) |
| 80 mph (128.75 km/h) | 83.64 mph (134.61 km/h) |
| 85 mph (136.79 km/h) | 88.87 mph (143.02 km/h) |
| 90 mph (144.84 km/h) | 94.1 mph (151.44 km/h) |
| 95 mph (152.89 km/h) | 99.33 mph (159.85 km/h) |
| 100 mph (160.93 km/h) | 104.55 mph (168.26 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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