Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/75-15 | 285/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.6 (853.5) | 31.83 (808.5) | -1.77 (-45) -5.3% |
| Width inches (mm) | 12.4 (315) | 11.22 (285) | -1.18 (-30) -9.5% |
| Circum. inches (mm) | 105.56 (2681.35) | 100 (2539.98) | -5.57 (-141.37) -5.3% |
| Sidewall Height inches (mm) | 9.3 (236.25) | 8.42 (213.75) | -0.89 (-22.5) -9.5% |
| Revolutions per mile (km) | 600.2 (372.95) | 633.61 (393.7) | 33.41 (20.76) 5.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.95 mph (30.49 km/h) |
| 25 mph (40.23 km/h) | 23.68 mph (38.11 km/h) |
| 30 mph (48.28 km/h) | 28.42 mph (45.73 km/h) |
| 35 mph (56.33 km/h) | 33.15 mph (53.36 km/h) |
| 40 mph (64.37 km/h) | 37.89 mph (60.98 km/h) |
| 45 mph (72.42 km/h) | 42.63 mph (68.6 km/h) |
| 50 mph (80.47 km/h) | 47.36 mph (76.22 km/h) |
| 55 mph (88.51 km/h) | 52.1 mph (83.85 km/h) |
| 60 mph (96.56 km/h) | 56.84 mph (91.47 km/h) |
| 65 mph (104.61 km/h) | 61.57 mph (99.09 km/h) |
| 70 mph (112.65 km/h) | 66.31 mph (106.71 km/h) |
| 75 mph (120.7 km/h) | 71.05 mph (114.34 km/h) |
| 80 mph (128.75 km/h) | 75.78 mph (121.96 km/h) |
| 85 mph (136.79 km/h) | 80.52 mph (129.58 km/h) |
| 90 mph (144.84 km/h) | 85.25 mph (137.2 km/h) |
| 95 mph (152.89 km/h) | 89.99 mph (144.83 km/h) |
| 100 mph (160.93 km/h) | 94.73 mph (152.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1612 | 1873 | 2017 | 2106 | 2202 | 2271 | 2347 | 2436 | 2559 | 2683 | 2820 | 2930 | 3129 | 3348 | 3520 | 3630 | 3691 | 3918 | 4233 | 4920 |
Better Fuel Economy Factory Ratios Increased Power
