Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/30-21 | 315/25-22 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.79 (680.4) | 28.2 (716.3) | 1.41 (35.9) 5.3% |
| Width inches (mm) | 9.65 (245) | 12.4 (315) | 2.76 (70) 28.6% |
| Circum. inches (mm) | 84.16 (2137.54) | 88.6 (2250.32) | 4.44 (112.78) 5.3% |
| Sidewall Height inches (mm) | 2.89 (73.5) | 3.1 (78.75) | 0.21 (5.25) 7.1% |
| Revolutions per mile (km) | 752.9 (467.83) | 715.16 (444.38) | -37.73 (-23.45) -5% |
315/25-22 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.06 mph (33.89 km/h) |
| 25 mph (40.23 km/h) | 26.32 mph (42.36 km/h) |
| 30 mph (48.28 km/h) | 31.58 mph (50.83 km/h) |
| 35 mph (56.33 km/h) | 36.85 mph (59.3 km/h) |
| 40 mph (64.37 km/h) | 42.11 mph (67.77 km/h) |
| 45 mph (72.42 km/h) | 47.37 mph (76.24 km/h) |
| 50 mph (80.47 km/h) | 52.64 mph (84.71 km/h) |
| 55 mph (88.51 km/h) | 57.9 mph (93.18 km/h) |
| 60 mph (96.56 km/h) | 63.17 mph (101.66 km/h) |
| 65 mph (104.61 km/h) | 68.43 mph (110.13 km/h) |
| 70 mph (112.65 km/h) | 73.69 mph (118.6 km/h) |
| 75 mph (120.7 km/h) | 78.96 mph (127.07 km/h) |
| 80 mph (128.75 km/h) | 84.22 mph (135.54 km/h) |
| 85 mph (136.79 km/h) | 89.48 mph (144.01 km/h) |
| 90 mph (144.84 km/h) | 94.75 mph (152.48 km/h) |
| 95 mph (152.89 km/h) | 100.01 mph (160.95 km/h) |
| 100 mph (160.93 km/h) | 105.28 mph (169.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1820 | 2114 | 2277 | 2378 | 2486 | 2563 | 2649 | 2749 | 2889 | 3028 | 3183 | 3307 | 3531 | 3779 | 3973 | 4097 | 4167 | 4422 | 4778 | 5553 |
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