Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/11.5-15 | 285/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.93 (836.52) | 31.83 (808.5) | -1.1 (-28.02) -3.3% |
| Width inches (mm) | 11.5 (292) | 11.22 (285) | -0.28 (-7) -2.4% |
| Circum. inches (mm) | 103.46 (2628.01) | 100 (2539.98) | -3.47 (-88.03) -3.3% |
| Sidewall Height inches (mm) | 8.97 (227.76) | 8.42 (213.75) | -0.55 (-14.01) -6.2% |
| Revolutions per mile (km) | 612.38 (380.52) | 633.61 (393.7) | 21.22 (13.19) 3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.33 mph (31.11 km/h) |
| 25 mph (40.23 km/h) | 24.16 mph (38.89 km/h) |
| 30 mph (48.28 km/h) | 29 mph (46.66 km/h) |
| 35 mph (56.33 km/h) | 33.83 mph (54.44 km/h) |
| 40 mph (64.37 km/h) | 38.66 mph (62.22 km/h) |
| 45 mph (72.42 km/h) | 43.49 mph (69.99 km/h) |
| 50 mph (80.47 km/h) | 48.33 mph (77.77 km/h) |
| 55 mph (88.51 km/h) | 53.16 mph (85.55 km/h) |
| 60 mph (96.56 km/h) | 57.99 mph (93.33 km/h) |
| 65 mph (104.61 km/h) | 62.82 mph (101.1 km/h) |
| 70 mph (112.65 km/h) | 67.66 mph (108.88 km/h) |
| 75 mph (120.7 km/h) | 72.49 mph (116.66 km/h) |
| 80 mph (128.75 km/h) | 77.32 mph (124.44 km/h) |
| 85 mph (136.79 km/h) | 82.15 mph (132.21 km/h) |
| 90 mph (144.84 km/h) | 86.99 mph (139.99 km/h) |
| 95 mph (152.89 km/h) | 91.82 mph (147.77 km/h) |
| 100 mph (160.93 km/h) | 96.65 mph (155.54 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
