Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/35-28 | 315/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.96 (938.7) | 34.36 (872.8) | -2.59 (-65.9) -7% |
| Width inches (mm) | 12.8 (325) | 12.4 (315) | -0.39 (-10) -3.1% |
| Circum. inches (mm) | 116.1 (2949.01) | 107.95 (2741.98) | -8.15 (-207.03) -7% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 8.68 (220.5) | 4.2 (106.75) 93.8% |
| Revolutions per mile (km) | 545.72 (339.1) | 586.93 (364.7) | 41.2 (25.6) 7.6% |
315/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.6 mph (29.93 km/h) |
| 25 mph (40.23 km/h) | 23.24 mph (37.41 km/h) |
| 30 mph (48.28 km/h) | 27.89 mph (44.89 km/h) |
| 35 mph (56.33 km/h) | 32.54 mph (52.37 km/h) |
| 40 mph (64.37 km/h) | 37.19 mph (59.85 km/h) |
| 45 mph (72.42 km/h) | 41.84 mph (67.34 km/h) |
| 50 mph (80.47 km/h) | 46.49 mph (74.82 km/h) |
| 55 mph (88.51 km/h) | 51.14 mph (82.3 km/h) |
| 60 mph (96.56 km/h) | 55.79 mph (89.78 km/h) |
| 65 mph (104.61 km/h) | 60.44 mph (97.26 km/h) |
| 70 mph (112.65 km/h) | 65.09 mph (104.75 km/h) |
| 75 mph (120.7 km/h) | 69.73 mph (112.23 km/h) |
| 80 mph (128.75 km/h) | 74.38 mph (119.71 km/h) |
| 85 mph (136.79 km/h) | 79.03 mph (127.19 km/h) |
| 90 mph (144.84 km/h) | 83.68 mph (134.67 km/h) |
| 95 mph (152.89 km/h) | 88.33 mph (142.15 km/h) |
| 100 mph (160.93 km/h) | 92.98 mph (149.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1494 | 1735 | 1869 | 1951 | 2040 | 2104 | 2174 | 2256 | 2371 | 2485 | 2612 | 2714 | 2898 | 3102 | 3261 | 3362 | 3419 | 3629 | 3922 | 4557 |
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