Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/12.5-15 | 305/75-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.03 (838.92) | 33.01 (838.5) | -0.02 (-0.42) -0.1% |
| Width inches (mm) | 12.52 (318) | 12.01 (305) | -0.51 (-13) -4.1% |
| Circum. inches (mm) | 103.76 (2635.54) | 103.71 (2634.23) | -0.05 (-1.32) -0.1% |
| Sidewall Height inches (mm) | 9.01 (228.96) | 9.01 (228.75) | -0.01 (-0.21) -0.1% |
| Revolutions per mile (km) | 610.63 (379.43) | 610.94 (379.62) | 0.31 (0.19) 0.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.99 mph (32.17 km/h) |
| 25 mph (40.23 km/h) | 24.99 mph (40.21 km/h) |
| 30 mph (48.28 km/h) | 29.98 mph (48.26 km/h) |
| 35 mph (56.33 km/h) | 34.98 mph (56.3 km/h) |
| 40 mph (64.37 km/h) | 39.98 mph (64.34 km/h) |
| 45 mph (72.42 km/h) | 44.98 mph (72.38 km/h) |
| 50 mph (80.47 km/h) | 49.97 mph (80.43 km/h) |
| 55 mph (88.51 km/h) | 54.97 mph (88.47 km/h) |
| 60 mph (96.56 km/h) | 59.97 mph (96.51 km/h) |
| 65 mph (104.61 km/h) | 64.97 mph (104.56 km/h) |
| 70 mph (112.65 km/h) | 69.96 mph (112.6 km/h) |
| 75 mph (120.7 km/h) | 74.96 mph (120.64 km/h) |
| 80 mph (128.75 km/h) | 79.96 mph (128.68 km/h) |
| 85 mph (136.79 km/h) | 84.96 mph (136.73 km/h) |
| 90 mph (144.84 km/h) | 89.95 mph (144.77 km/h) |
| 95 mph (152.89 km/h) | 94.95 mph (152.81 km/h) |
| 100 mph (160.93 km/h) | 99.95 mph (160.85 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1555 | 1806 | 1945 | 2031 | 2124 | 2190 | 2263 | 2349 | 2468 | 2587 | 2719 | 2825 | 3017 | 3229 | 3394 | 3500 | 3559 | 3778 | 4082 | 4744 |
Better Fuel Economy Factory Ratios Increased Power
