Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/70-17 | 33/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.36 (872.8) | 33.03 (838.92) | -1.33 (-33.88) -3.9% |
| Width inches (mm) | 12.4 (315) | 12.52 (318) | 0.12 (3) 1% |
| Circum. inches (mm) | 107.95 (2741.98) | 103.76 (2635.54) | -4.19 (-106.44) -3.9% |
| Sidewall Height inches (mm) | 8.68 (220.5) | 9.01 (228.96) | 0.33 (8.46) 3.8% |
| Revolutions per mile (km) | 586.93 (364.7) | 610.63 (379.43) | 23.7 (14.73) 4% |
33/12.5-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.22 mph (30.94 km/h) |
| 25 mph (40.23 km/h) | 24.03 mph (38.67 km/h) |
| 30 mph (48.28 km/h) | 28.84 mph (46.41 km/h) |
| 35 mph (56.33 km/h) | 33.64 mph (54.14 km/h) |
| 40 mph (64.37 km/h) | 38.45 mph (61.88 km/h) |
| 45 mph (72.42 km/h) | 43.25 mph (69.61 km/h) |
| 50 mph (80.47 km/h) | 48.06 mph (77.34 km/h) |
| 55 mph (88.51 km/h) | 52.87 mph (85.08 km/h) |
| 60 mph (96.56 km/h) | 57.67 mph (92.81 km/h) |
| 65 mph (104.61 km/h) | 62.48 mph (100.55 km/h) |
| 70 mph (112.65 km/h) | 67.28 mph (108.28 km/h) |
| 75 mph (120.7 km/h) | 72.09 mph (116.02 km/h) |
| 80 mph (128.75 km/h) | 76.89 mph (123.75 km/h) |
| 85 mph (136.79 km/h) | 81.7 mph (131.48 km/h) |
| 90 mph (144.84 km/h) | 86.51 mph (139.22 km/h) |
| 95 mph (152.89 km/h) | 91.31 mph (146.95 km/h) |
| 100 mph (160.93 km/h) | 96.12 mph (154.69 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 | 2261 | 2347 | 2466 | 2585 | 2718 | 2824 | 3015 | 3227 | 3392 | 3498 | 3558 | 3776 | 4080 | 4741 |
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