Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-18 | 295/40-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.04 (686.7) | 27.29 (693.2) | 0.26 (6.5) 0.9% |
| Width inches (mm) | 10.04 (255) | 11.61 (295) | 1.57 (40) 15.7% |
| Circum. inches (mm) | 84.93 (2157.33) | 85.74 (2177.75) | 0.8 (20.42) 0.9% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 4.65 (118) | 0.13 (3.25) 2.8% |
| Revolutions per mile (km) | 745.99 (463.53) | 738.99 (459.19) | -6.99 (-4.35) -0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.19 mph (32.49 km/h) |
| 25 mph (40.23 km/h) | 25.24 mph (40.61 km/h) |
| 30 mph (48.28 km/h) | 30.28 mph (48.74 km/h) |
| 35 mph (56.33 km/h) | 35.33 mph (56.86 km/h) |
| 40 mph (64.37 km/h) | 40.38 mph (64.98 km/h) |
| 45 mph (72.42 km/h) | 45.43 mph (73.11 km/h) |
| 50 mph (80.47 km/h) | 50.47 mph (81.23 km/h) |
| 55 mph (88.51 km/h) | 55.52 mph (89.35 km/h) |
| 60 mph (96.56 km/h) | 60.57 mph (97.47 km/h) |
| 65 mph (104.61 km/h) | 65.62 mph (105.6 km/h) |
| 70 mph (112.65 km/h) | 70.66 mph (113.72 km/h) |
| 75 mph (120.7 km/h) | 75.71 mph (121.84 km/h) |
| 80 mph (128.75 km/h) | 80.76 mph (129.97 km/h) |
| 85 mph (136.79 km/h) | 85.8 mph (138.09 km/h) |
| 90 mph (144.84 km/h) | 90.85 mph (146.21 km/h) |
| 95 mph (152.89 km/h) | 95.9 mph (154.34 km/h) |
| 100 mph (160.93 km/h) | 100.95 mph (162.46 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1881 | 2185 | 2353 | 2457 | 2569 | 2649 | 2737 | 2841 | 2985 | 3129 | 3289 | 3417 | 3649 | 3905 | 4105 | 4233 | 4305 | 4569 | 4938 | 5738 |
Better Fuel Economy Factory Ratios Increased Power
