Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-19 | 375/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.2 (640.1) | 40.15 (1019.7) | 14.94 (379.6) 59.3% |
| Width inches (mm) | 12.4 (315) | 14.76 (375) | 2.36 (60) 19% |
| Circum. inches (mm) | 79.17 (2010.93) | 126.12 (3203.48) | 46.95 (1192.55) 59.3% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 11.07 (281.25) | 7.97 (202.5) 257.1% |
| Revolutions per mile (km) | 800.3 (497.28) | 502.37 (312.16) | -297.92 (-185.12) -37.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 31.86 mph (51.27 km/h) |
| 25 mph (40.23 km/h) | 39.83 mph (64.09 km/h) |
| 30 mph (48.28 km/h) | 47.79 mph (76.91 km/h) |
| 35 mph (56.33 km/h) | 55.76 mph (89.73 km/h) |
| 40 mph (64.37 km/h) | 63.72 mph (102.55 km/h) |
| 45 mph (72.42 km/h) | 71.69 mph (115.37 km/h) |
| 50 mph (80.47 km/h) | 79.65 mph (128.19 km/h) |
| 55 mph (88.51 km/h) | 87.62 mph (141.01 km/h) |
| 60 mph (96.56 km/h) | 95.58 mph (153.82 km/h) |
| 65 mph (104.61 km/h) | 103.55 mph (166.64 km/h) |
| 70 mph (112.65 km/h) | 111.51 mph (179.46 km/h) |
| 75 mph (120.7 km/h) | 119.48 mph (192.28 km/h) |
| 80 mph (128.75 km/h) | 127.44 mph (205.1 km/h) |
| 85 mph (136.79 km/h) | 135.41 mph (217.92 km/h) |
| 90 mph (144.84 km/h) | 143.37 mph (230.74 km/h) |
| 95 mph (152.89 km/h) | 151.34 mph (243.56 km/h) |
| 100 mph (160.93 km/h) | 159.3 mph (256.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1278 | 1485 | 1599 | 1670 | 1746 | 1801 | 1861 | 1931 | 2029 | 2127 | 2236 | 2323 | 2481 | 2655 | 2791 | 2878 | 2927 | 3106 | 3357 | 3901 |
Better Fuel Economy Factory Ratios Increased Power
