Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 33/11.5-15 | 305/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.93 (836.52) | 30.61 (777.5) | -2.32 (-59.02) -7.1% |
| Width inches (mm) | 11.5 (292) | 12.01 (305) | 0.51 (13) 4.5% |
| Circum. inches (mm) | 103.46 (2628.01) | 96.16 (2442.59) | -7.3 (-185.42) -7.1% |
| Sidewall Height inches (mm) | 8.97 (227.76) | 7.81 (198.25) | -1.16 (-29.51) -13% |
| Revolutions per mile (km) | 612.38 (380.52) | 658.87 (409.4) | 46.49 (28.88) 7.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.59 mph (29.92 km/h) |
| 25 mph (40.23 km/h) | 23.24 mph (37.4 km/h) |
| 30 mph (48.28 km/h) | 27.88 mph (44.87 km/h) |
| 35 mph (56.33 km/h) | 32.53 mph (52.35 km/h) |
| 40 mph (64.37 km/h) | 37.18 mph (59.83 km/h) |
| 45 mph (72.42 km/h) | 41.83 mph (67.31 km/h) |
| 50 mph (80.47 km/h) | 46.47 mph (74.79 km/h) |
| 55 mph (88.51 km/h) | 51.12 mph (82.27 km/h) |
| 60 mph (96.56 km/h) | 55.77 mph (89.75 km/h) |
| 65 mph (104.61 km/h) | 60.41 mph (97.23 km/h) |
| 70 mph (112.65 km/h) | 65.06 mph (104.71 km/h) |
| 75 mph (120.7 km/h) | 69.71 mph (112.19 km/h) |
| 80 mph (128.75 km/h) | 74.36 mph (119.66 km/h) |
| 85 mph (136.79 km/h) | 79 mph (127.14 km/h) |
| 90 mph (144.84 km/h) | 83.65 mph (134.62 km/h) |
| 95 mph (152.89 km/h) | 88.3 mph (142.1 km/h) |
| 100 mph (160.93 km/h) | 92.94 mph (149.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1677 | 1948 | 2098 | 2190 | 2290 | 2362 | 2440 | 2533 | 2661 | 2790 | 2932 | 3047 | 3253 | 3482 | 3660 | 3774 | 3839 | 4074 | 4402 | 5116 |
Better Fuel Economy Factory Ratios Increased Power
