Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/40-18 | 305/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.29 (693.2) | 27.61 (701.2) | 0.31 (8) 1.2% |
| Width inches (mm) | 11.61 (295) | 12.01 (305) | 0.39 (10) 3.4% |
| Circum. inches (mm) | 85.74 (2177.75) | 86.73 (2202.88) | 0.99 (25.13) 1.2% |
| Sidewall Height inches (mm) | 4.65 (118) | 4.8 (122) | 0.16 (4) 3.4% |
| Revolutions per mile (km) | 738.99 (459.19) | 730.56 (453.95) | -8.43 (-5.24) -1.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.23 mph (32.56 km/h) |
| 25 mph (40.23 km/h) | 25.29 mph (40.7 km/h) |
| 30 mph (48.28 km/h) | 30.35 mph (48.84 km/h) |
| 35 mph (56.33 km/h) | 35.4 mph (56.98 km/h) |
| 40 mph (64.37 km/h) | 40.46 mph (65.12 km/h) |
| 45 mph (72.42 km/h) | 45.52 mph (73.26 km/h) |
| 50 mph (80.47 km/h) | 50.58 mph (81.4 km/h) |
| 55 mph (88.51 km/h) | 55.63 mph (89.54 km/h) |
| 60 mph (96.56 km/h) | 60.69 mph (97.68 km/h) |
| 65 mph (104.61 km/h) | 65.75 mph (105.81 km/h) |
| 70 mph (112.65 km/h) | 70.81 mph (113.95 km/h) |
| 75 mph (120.7 km/h) | 75.87 mph (122.09 km/h) |
| 80 mph (128.75 km/h) | 80.92 mph (130.23 km/h) |
| 85 mph (136.79 km/h) | 85.98 mph (138.37 km/h) |
| 90 mph (144.84 km/h) | 91.04 mph (146.51 km/h) |
| 95 mph (152.89 km/h) | 96.1 mph (154.65 km/h) |
| 100 mph (160.93 km/h) | 101.15 mph (162.79 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
