Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/75-18 | 305/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.65 (854.7) | 36.01 (914.7) | 2.36 (60) 7% |
| Width inches (mm) | 10.43 (265) | 12.01 (305) | 1.57 (40) 15.1% |
| Circum. inches (mm) | 105.71 (2685.12) | 113.13 (2873.61) | 7.42 (188.5) 7% |
| Sidewall Height inches (mm) | 7.82 (198.75) | 9.01 (228.75) | 1.18 (30) 15.1% |
| Revolutions per mile (km) | 599.36 (372.42) | 560.04 (347.99) | -39.31 (-24.43) -6.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.4 mph (34.45 km/h) |
| 25 mph (40.23 km/h) | 26.76 mph (43.06 km/h) |
| 30 mph (48.28 km/h) | 32.11 mph (51.67 km/h) |
| 35 mph (56.33 km/h) | 37.46 mph (60.28 km/h) |
| 40 mph (64.37 km/h) | 42.81 mph (68.89 km/h) |
| 45 mph (72.42 km/h) | 48.16 mph (77.5 km/h) |
| 50 mph (80.47 km/h) | 53.51 mph (86.12 km/h) |
| 55 mph (88.51 km/h) | 58.86 mph (94.73 km/h) |
| 60 mph (96.56 km/h) | 64.21 mph (103.34 km/h) |
| 65 mph (104.61 km/h) | 69.56 mph (111.95 km/h) |
| 70 mph (112.65 km/h) | 74.91 mph (120.56 km/h) |
| 75 mph (120.7 km/h) | 80.27 mph (129.17 km/h) |
| 80 mph (128.75 km/h) | 85.62 mph (137.79 km/h) |
| 85 mph (136.79 km/h) | 90.97 mph (146.4 km/h) |
| 90 mph (144.84 km/h) | 96.32 mph (155.01 km/h) |
| 95 mph (152.89 km/h) | 101.67 mph (163.62 km/h) |
| 100 mph (160.93 km/h) | 107.02 mph (172.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1425 | 1656 | 1783 | 1862 | 1947 | 2007 | 2074 | 2153 | 2262 | 2371 | 2493 | 2590 | 2765 | 2960 | 3111 | 3208 | 3263 | 3463 | 3742 | 4348 |
Better Fuel Economy Factory Ratios Increased Power
