Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/55-16 | 145/45-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.28 (565.9) | 21.14 (536.9) | -1.14 (-29) -5.1% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 69.99 (1777.83) | 66.41 (1686.72) | -3.59 (-91.11) -5.1% |
| Sidewall Height inches (mm) | 3.14 (79.75) | 2.57 (65.25) | -0.57 (-14.5) -18.2% |
| Revolutions per mile (km) | 905.23 (562.48) | 954.13 (592.87) | 48.89 (30.38) 5.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.98 mph (30.54 km/h) |
| 25 mph (40.23 km/h) | 23.72 mph (38.17 km/h) |
| 30 mph (48.28 km/h) | 28.46 mph (45.81 km/h) |
| 35 mph (56.33 km/h) | 33.21 mph (53.44 km/h) |
| 40 mph (64.37 km/h) | 37.95 mph (61.07 km/h) |
| 45 mph (72.42 km/h) | 42.69 mph (68.71 km/h) |
| 50 mph (80.47 km/h) | 47.44 mph (76.34 km/h) |
| 55 mph (88.51 km/h) | 52.18 mph (83.98 km/h) |
| 60 mph (96.56 km/h) | 56.93 mph (91.61 km/h) |
| 65 mph (104.61 km/h) | 61.67 mph (99.25 km/h) |
| 70 mph (112.65 km/h) | 66.41 mph (106.88 km/h) |
| 75 mph (120.7 km/h) | 71.16 mph (114.52 km/h) |
| 80 mph (128.75 km/h) | 75.9 mph (122.15 km/h) |
| 85 mph (136.79 km/h) | 80.64 mph (129.78 km/h) |
| 90 mph (144.84 km/h) | 85.39 mph (137.42 km/h) |
| 95 mph (152.89 km/h) | 90.13 mph (145.05 km/h) |
| 100 mph (160.93 km/h) | 94.88 mph (152.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
