Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/11.5-15 | 305/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.93 (836.52) | 31.81 (808) | -1.12 (-28.52) -3.4% |
| Width inches (mm) | 11.5 (292) | 12.01 (305) | 0.51 (13) 4.5% |
| Circum. inches (mm) | 103.46 (2628.01) | 99.94 (2538.41) | -3.53 (-89.6) -3.4% |
| Sidewall Height inches (mm) | 8.97 (227.76) | 8.41 (213.5) | -0.56 (-14.26) -6.3% |
| Revolutions per mile (km) | 612.38 (380.52) | 634 (393.95) | 21.62 (13.43) 3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.32 mph (31.09 km/h) |
| 25 mph (40.23 km/h) | 24.15 mph (38.86 km/h) |
| 30 mph (48.28 km/h) | 28.98 mph (46.63 km/h) |
| 35 mph (56.33 km/h) | 33.81 mph (54.41 km/h) |
| 40 mph (64.37 km/h) | 38.64 mph (62.18 km/h) |
| 45 mph (72.42 km/h) | 43.47 mph (69.95 km/h) |
| 50 mph (80.47 km/h) | 48.3 mph (77.72 km/h) |
| 55 mph (88.51 km/h) | 53.12 mph (85.5 km/h) |
| 60 mph (96.56 km/h) | 57.95 mph (93.27 km/h) |
| 65 mph (104.61 km/h) | 62.78 mph (101.04 km/h) |
| 70 mph (112.65 km/h) | 67.61 mph (108.81 km/h) |
| 75 mph (120.7 km/h) | 72.44 mph (116.59 km/h) |
| 80 mph (128.75 km/h) | 77.27 mph (124.36 km/h) |
| 85 mph (136.79 km/h) | 82.1 mph (132.13 km/h) |
| 90 mph (144.84 km/h) | 86.93 mph (139.9 km/h) |
| 95 mph (152.89 km/h) | 91.76 mph (147.68 km/h) |
| 100 mph (160.93 km/h) | 96.59 mph (155.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1613 | 1874 | 2018 | 2108 | 2204 | 2272 | 2348 | 2437 | 2561 | 2684 | 2822 | 2932 | 3131 | 3350 | 3522 | 3632 | 3694 | 3920 | 4236 | 4923 |
Better Fuel Economy Factory Ratios Increased Power
