Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/11.5-15 | 280/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.93 (836.52) | 33.43 (849.2) | 0.5 (12.68) 1.5% |
| Width inches (mm) | 11.5 (292) | 11.02 (280) | -0.47 (-12) -4.1% |
| Circum. inches (mm) | 103.46 (2628.01) | 105.03 (2667.84) | 1.57 (39.84) 1.5% |
| Sidewall Height inches (mm) | 8.97 (227.76) | 7.72 (196) | -1.25 (-31.76) -13.9% |
| Revolutions per mile (km) | 612.38 (380.52) | 603.24 (374.83) | -9.14 (-5.68) -1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.3 mph (32.67 km/h) |
| 25 mph (40.23 km/h) | 25.38 mph (40.84 km/h) |
| 30 mph (48.28 km/h) | 30.45 mph (49.01 km/h) |
| 35 mph (56.33 km/h) | 35.53 mph (57.18 km/h) |
| 40 mph (64.37 km/h) | 40.61 mph (65.35 km/h) |
| 45 mph (72.42 km/h) | 45.68 mph (73.52 km/h) |
| 50 mph (80.47 km/h) | 50.76 mph (81.69 km/h) |
| 55 mph (88.51 km/h) | 55.83 mph (89.86 km/h) |
| 60 mph (96.56 km/h) | 60.91 mph (98.02 km/h) |
| 65 mph (104.61 km/h) | 65.99 mph (106.19 km/h) |
| 70 mph (112.65 km/h) | 71.06 mph (114.36 km/h) |
| 75 mph (120.7 km/h) | 76.14 mph (122.53 km/h) |
| 80 mph (128.75 km/h) | 81.21 mph (130.7 km/h) |
| 85 mph (136.79 km/h) | 86.29 mph (138.87 km/h) |
| 90 mph (144.84 km/h) | 91.36 mph (147.04 km/h) |
| 95 mph (152.89 km/h) | 96.44 mph (155.21 km/h) |
| 100 mph (160.93 km/h) | 101.52 mph (163.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1535 | 1783 | 1921 | 2005 | 2097 | 2162 | 2234 | 2319 | 2437 | 2554 | 2685 | 2789 | 2979 | 3188 | 3351 | 3456 | 3514 | 3730 | 4031 | 4684 |
Better Fuel Economy Factory Ratios Increased Power
