Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/40-18 | 295/45-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.24 (717.2) | 28.45 (722.7) | 0.22 (5.5) 0.8% |
| Width inches (mm) | 12.8 (325) | 11.61 (295) | -1.18 (-30) -9.2% |
| Circum. inches (mm) | 88.71 (2253.15) | 89.39 (2270.43) | 0.68 (17.28) 0.8% |
| Sidewall Height inches (mm) | 5.12 (130) | 5.23 (132.75) | 0.11 (2.75) 2.1% |
| Revolutions per mile (km) | 714.26 (443.82) | 708.83 (440.44) | -5.44 (-3.38) -0.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.15 mph (32.43 km/h) |
| 25 mph (40.23 km/h) | 25.19 mph (40.54 km/h) |
| 30 mph (48.28 km/h) | 30.23 mph (48.65 km/h) |
| 35 mph (56.33 km/h) | 35.27 mph (56.76 km/h) |
| 40 mph (64.37 km/h) | 40.31 mph (64.87 km/h) |
| 45 mph (72.42 km/h) | 45.35 mph (72.98 km/h) |
| 50 mph (80.47 km/h) | 50.38 mph (81.08 km/h) |
| 55 mph (88.51 km/h) | 55.42 mph (89.19 km/h) |
| 60 mph (96.56 km/h) | 60.46 mph (97.3 km/h) |
| 65 mph (104.61 km/h) | 65.5 mph (105.41 km/h) |
| 70 mph (112.65 km/h) | 70.54 mph (113.52 km/h) |
| 75 mph (120.7 km/h) | 75.58 mph (121.63 km/h) |
| 80 mph (128.75 km/h) | 80.61 mph (129.74 km/h) |
| 85 mph (136.79 km/h) | 85.65 mph (137.84 km/h) |
| 90 mph (144.84 km/h) | 90.69 mph (145.95 km/h) |
| 95 mph (152.89 km/h) | 95.73 mph (154.06 km/h) |
| 100 mph (160.93 km/h) | 100.77 mph (162.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1804 | 2096 | 2257 | 2356 | 2464 | 2541 | 2625 | 2725 | 2863 | 3001 | 3155 | 3278 | 3500 | 3746 | 3938 | 4061 | 4130 | 4383 | 4736 | 5504 |
Better Fuel Economy Factory Ratios Increased Power
