Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 270/70-17 | 33/12.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.88 (809.8) | 33.03 (838.84) | 1.14 (29.04) 3.6% |
| Width inches (mm) | 10.63 (270) | 12.52 (318) | 1.89 (48) 17.8% |
| Circum. inches (mm) | 100.16 (2544.06) | 103.75 (2635.29) | 3.59 (91.23) 3.6% |
| Sidewall Height inches (mm) | 7.44 (189) | 8.01 (203.52) | 0.57 (14.52) 7.7% |
| Revolutions per mile (km) | 632.59 (393.07) | 610.69 (379.46) | -21.9 (-13.61) -3.5% |
33/12.5-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.72 mph (33.34 km/h) |
| 25 mph (40.23 km/h) | 25.9 mph (41.68 km/h) |
| 30 mph (48.28 km/h) | 31.08 mph (50.01 km/h) |
| 35 mph (56.33 km/h) | 36.26 mph (58.35 km/h) |
| 40 mph (64.37 km/h) | 41.43 mph (66.68 km/h) |
| 45 mph (72.42 km/h) | 46.61 mph (75.02 km/h) |
| 50 mph (80.47 km/h) | 51.79 mph (83.35 km/h) |
| 55 mph (88.51 km/h) | 56.97 mph (91.69 km/h) |
| 60 mph (96.56 km/h) | 62.15 mph (100.02 km/h) |
| 65 mph (104.61 km/h) | 67.33 mph (108.36 km/h) |
| 70 mph (112.65 km/h) | 72.51 mph (116.69 km/h) |
| 75 mph (120.7 km/h) | 77.69 mph (125.03 km/h) |
| 80 mph (128.75 km/h) | 82.87 mph (133.36 km/h) |
| 85 mph (136.79 km/h) | 88.05 mph (141.7 km/h) |
| 90 mph (144.84 km/h) | 93.23 mph (150.04 km/h) |
| 95 mph (152.89 km/h) | 98.41 mph (158.37 km/h) |
| 100 mph (160.93 km/h) | 103.59 mph (166.71 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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