Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-19 | 375/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.2 (640.1) | 38.67 (982.2) | 13.47 (342.1) 53.4% |
| Width inches (mm) | 12.4 (315) | 14.76 (375) | 2.36 (60) 19% |
| Circum. inches (mm) | 79.17 (2010.93) | 121.48 (3085.67) | 42.31 (1074.74) 53.4% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 10.33 (262.5) | 7.23 (183.75) 233.3% |
| Revolutions per mile (km) | 800.3 (497.28) | 521.55 (324.08) | -278.74 (-173.2) -34.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 30.69 mph (49.39 km/h) |
| 25 mph (40.23 km/h) | 38.36 mph (61.74 km/h) |
| 30 mph (48.28 km/h) | 46.03 mph (74.08 km/h) |
| 35 mph (56.33 km/h) | 53.71 mph (86.43 km/h) |
| 40 mph (64.37 km/h) | 61.38 mph (98.78 km/h) |
| 45 mph (72.42 km/h) | 69.05 mph (111.13 km/h) |
| 50 mph (80.47 km/h) | 76.72 mph (123.47 km/h) |
| 55 mph (88.51 km/h) | 84.39 mph (135.82 km/h) |
| 60 mph (96.56 km/h) | 92.07 mph (148.17 km/h) |
| 65 mph (104.61 km/h) | 99.74 mph (160.51 km/h) |
| 70 mph (112.65 km/h) | 107.41 mph (172.86 km/h) |
| 75 mph (120.7 km/h) | 115.08 mph (185.21 km/h) |
| 80 mph (128.75 km/h) | 122.76 mph (197.56 km/h) |
| 85 mph (136.79 km/h) | 130.43 mph (209.9 km/h) |
| 90 mph (144.84 km/h) | 138.1 mph (222.25 km/h) |
| 95 mph (152.89 km/h) | 145.77 mph (234.6 km/h) |
| 100 mph (160.93 km/h) | 153.44 mph (246.95 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1327 | 1542 | 1660 | 1734 | 1813 | 1869 | 1932 | 2005 | 2107 | 2208 | 2321 | 2412 | 2575 | 2756 | 2897 | 2988 | 3039 | 3225 | 3485 | 4050 |
Better Fuel Economy Factory Ratios Increased Power
