Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-19 | 315/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.2 (640.1) | 36.6 (929.7) | 11.4 (289.6) 45.2% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 79.17 (2010.93) | 114.99 (2920.74) | 35.82 (909.81) 45.2% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 9.3 (236.25) | 6.2 (157.5) 200% |
| Revolutions per mile (km) | 800.3 (497.28) | 551.01 (342.38) | -249.29 (-154.9) -31.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.05 mph (46.75 km/h) |
| 25 mph (40.23 km/h) | 36.31 mph (58.44 km/h) |
| 30 mph (48.28 km/h) | 43.57 mph (70.12 km/h) |
| 35 mph (56.33 km/h) | 50.84 mph (81.81 km/h) |
| 40 mph (64.37 km/h) | 58.1 mph (93.5 km/h) |
| 45 mph (72.42 km/h) | 65.36 mph (105.19 km/h) |
| 50 mph (80.47 km/h) | 72.62 mph (116.87 km/h) |
| 55 mph (88.51 km/h) | 79.88 mph (128.56 km/h) |
| 60 mph (96.56 km/h) | 87.15 mph (140.25 km/h) |
| 65 mph (104.61 km/h) | 94.41 mph (151.94 km/h) |
| 70 mph (112.65 km/h) | 101.67 mph (163.62 km/h) |
| 75 mph (120.7 km/h) | 108.93 mph (175.31 km/h) |
| 80 mph (128.75 km/h) | 116.19 mph (187 km/h) |
| 85 mph (136.79 km/h) | 123.46 mph (198.68 km/h) |
| 90 mph (144.84 km/h) | 130.72 mph (210.37 km/h) |
| 95 mph (152.89 km/h) | 137.98 mph (222.06 km/h) |
| 100 mph (160.93 km/h) | 145.24 mph (233.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1402 | 1629 | 1754 | 1832 | 1915 | 1975 | 2041 | 2118 | 2226 | 2333 | 2452 | 2548 | 2721 | 2912 | 3061 | 3156 | 3210 | 3407 | 3682 | 4278 |
Better Fuel Economy Factory Ratios Increased Power
