Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/70-15 | 285/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.71 (780) | 31.83 (808.5) | 1.12 (28.5) 3.7% |
| Width inches (mm) | 11.22 (285) | 11.22 (285) | 0 (0) 0% |
| Circum. inches (mm) | 96.47 (2450.44) | 100 (2539.98) | 3.53 (89.54) 3.7% |
| Sidewall Height inches (mm) | 7.85 (199.5) | 8.42 (213.75) | 0.56 (14.25) 7.1% |
| Revolutions per mile (km) | 656.76 (408.09) | 633.61 (393.7) | -23.15 (-14.39) -3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.73 mph (33.36 km/h) |
| 25 mph (40.23 km/h) | 25.91 mph (41.7 km/h) |
| 30 mph (48.28 km/h) | 31.1 mph (50.04 km/h) |
| 35 mph (56.33 km/h) | 36.28 mph (58.39 km/h) |
| 40 mph (64.37 km/h) | 41.46 mph (66.73 km/h) |
| 45 mph (72.42 km/h) | 46.64 mph (75.07 km/h) |
| 50 mph (80.47 km/h) | 51.83 mph (83.41 km/h) |
| 55 mph (88.51 km/h) | 57.01 mph (91.75 km/h) |
| 60 mph (96.56 km/h) | 62.19 mph (100.09 km/h) |
| 65 mph (104.61 km/h) | 67.38 mph (108.43 km/h) |
| 70 mph (112.65 km/h) | 72.56 mph (116.77 km/h) |
| 75 mph (120.7 km/h) | 77.74 mph (125.11 km/h) |
| 80 mph (128.75 km/h) | 82.92 mph (133.45 km/h) |
| 85 mph (136.79 km/h) | 88.11 mph (141.79 km/h) |
| 90 mph (144.84 km/h) | 93.29 mph (150.13 km/h) |
| 95 mph (152.89 km/h) | 98.47 mph (158.47 km/h) |
| 100 mph (160.93 km/h) | 103.65 mph (166.82 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
