Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-19 | 305/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.2 (640.1) | 30.21 (767.3) | 5.01 (127.2) 19.9% |
| Width inches (mm) | 12.4 (315) | 12.01 (305) | -0.39 (-10) -3.2% |
| Circum. inches (mm) | 79.17 (2010.93) | 94.9 (2410.54) | 15.73 (399.61) 19.9% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 6.6 (167.75) | 3.5 (89) 113% |
| Revolutions per mile (km) | 800.3 (497.28) | 667.63 (414.84) | -132.67 (-82.44) -16.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.97 mph (38.58 km/h) |
| 25 mph (40.23 km/h) | 29.97 mph (48.23 km/h) |
| 30 mph (48.28 km/h) | 35.96 mph (57.87 km/h) |
| 35 mph (56.33 km/h) | 41.96 mph (67.52 km/h) |
| 40 mph (64.37 km/h) | 47.95 mph (77.17 km/h) |
| 45 mph (72.42 km/h) | 53.94 mph (86.81 km/h) |
| 50 mph (80.47 km/h) | 59.94 mph (96.46 km/h) |
| 55 mph (88.51 km/h) | 65.93 mph (106.1 km/h) |
| 60 mph (96.56 km/h) | 71.92 mph (115.75 km/h) |
| 65 mph (104.61 km/h) | 77.92 mph (125.4 km/h) |
| 70 mph (112.65 km/h) | 83.91 mph (135.04 km/h) |
| 75 mph (120.7 km/h) | 89.9 mph (144.69 km/h) |
| 80 mph (128.75 km/h) | 95.9 mph (154.33 km/h) |
| 85 mph (136.79 km/h) | 101.89 mph (163.98 km/h) |
| 90 mph (144.84 km/h) | 107.88 mph (173.62 km/h) |
| 95 mph (152.89 km/h) | 113.88 mph (183.27 km/h) |
| 100 mph (160.93 km/h) | 119.87 mph (192.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1699 | 1974 | 2126 | 2220 | 2321 | 2393 | 2473 | 2567 | 2697 | 2827 | 2971 | 3087 | 3297 | 3528 | 3709 | 3825 | 3890 | 4128 | 4461 | 5184 |
Better Fuel Economy Factory Ratios Increased Power
