Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/45-18 | 305/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.45 (722.7) | 27.61 (701.2) | -0.85 (-21.5) -3% |
| Width inches (mm) | 11.61 (295) | 12.01 (305) | 0.39 (10) 3.4% |
| Circum. inches (mm) | 89.39 (2270.43) | 86.73 (2202.88) | -2.66 (-67.54) -3% |
| Sidewall Height inches (mm) | 5.23 (132.75) | 4.8 (122) | -0.42 (-10.75) -8.1% |
| Revolutions per mile (km) | 708.83 (440.44) | 730.56 (453.95) | 21.73 (13.5) 3.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.41 mph (31.23 km/h) |
| 25 mph (40.23 km/h) | 24.26 mph (39.04 km/h) |
| 30 mph (48.28 km/h) | 29.11 mph (46.84 km/h) |
| 35 mph (56.33 km/h) | 33.96 mph (54.65 km/h) |
| 40 mph (64.37 km/h) | 38.81 mph (62.46 km/h) |
| 45 mph (72.42 km/h) | 43.66 mph (70.27 km/h) |
| 50 mph (80.47 km/h) | 48.51 mph (78.07 km/h) |
| 55 mph (88.51 km/h) | 53.36 mph (85.88 km/h) |
| 60 mph (96.56 km/h) | 58.22 mph (93.69 km/h) |
| 65 mph (104.61 km/h) | 63.07 mph (101.5 km/h) |
| 70 mph (112.65 km/h) | 67.92 mph (109.3 km/h) |
| 75 mph (120.7 km/h) | 72.77 mph (117.11 km/h) |
| 80 mph (128.75 km/h) | 77.62 mph (124.92 km/h) |
| 85 mph (136.79 km/h) | 82.47 mph (132.72 km/h) |
| 90 mph (144.84 km/h) | 87.32 mph (140.53 km/h) |
| 95 mph (152.89 km/h) | 92.17 mph (148.34 km/h) |
| 100 mph (160.93 km/h) | 97.03 mph (156.15 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1859 | 2160 | 2326 | 2429 | 2540 | 2619 | 2706 | 2808 | 2951 | 3093 | 3252 | 3378 | 3608 | 3861 | 4058 | 4185 | 4256 | 4517 | 4881 | 5672 |
Better Fuel Economy Factory Ratios Increased Power
