Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 445/55-19.5 | 305/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 38.77 (984.8) | 39.31 (998.5) | 0.54 (13.7) 1.4% |
| Width inches (mm) | 17.52 (445) | 12.01 (305) | -5.51 (-140) -31.5% |
| Circum. inches (mm) | 121.8 (3093.84) | 123.5 (3136.88) | 1.69 (43.04) 1.4% |
| Sidewall Height inches (mm) | 9.64 (244.75) | 8.41 (213.5) | -1.23 (-31.25) -12.8% |
| Revolutions per mile (km) | 520.18 (323.22) | 513.04 (318.79) | -7.14 (-4.43) -1.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.28 mph (32.63 km/h) |
| 25 mph (40.23 km/h) | 25.35 mph (40.79 km/h) |
| 30 mph (48.28 km/h) | 30.42 mph (48.95 km/h) |
| 35 mph (56.33 km/h) | 35.49 mph (57.11 km/h) |
| 40 mph (64.37 km/h) | 40.56 mph (65.27 km/h) |
| 45 mph (72.42 km/h) | 45.63 mph (73.43 km/h) |
| 50 mph (80.47 km/h) | 50.7 mph (81.59 km/h) |
| 55 mph (88.51 km/h) | 55.77 mph (89.75 km/h) |
| 60 mph (96.56 km/h) | 60.83 mph (97.9 km/h) |
| 65 mph (104.61 km/h) | 65.9 mph (106.06 km/h) |
| 70 mph (112.65 km/h) | 70.97 mph (114.22 km/h) |
| 75 mph (120.7 km/h) | 76.04 mph (122.38 km/h) |
| 80 mph (128.75 km/h) | 81.11 mph (130.54 km/h) |
| 85 mph (136.79 km/h) | 86.18 mph (138.7 km/h) |
| 90 mph (144.84 km/h) | 91.25 mph (146.86 km/h) |
| 95 mph (152.89 km/h) | 96.32 mph (155.01 km/h) |
| 100 mph (160.93 km/h) | 101.39 mph (163.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1306 | 1517 | 1633 | 1706 | 1783 | 1839 | 1900 | 1972 | 2072 | 2172 | 2283 | 2372 | 2533 | 2711 | 2850 | 2939 | 2989 | 3172 | 3428 | 3983 |
Better Fuel Economy Factory Ratios Increased Power
