Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/55-16 | 145/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.28 (565.9) | 20.71 (526) | -1.57 (-39.9) -7.1% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 69.99 (1777.83) | 65.06 (1652.48) | -4.94 (-125.35) -7.1% |
| Sidewall Height inches (mm) | 3.14 (79.75) | 2.85 (72.5) | -0.29 (-7.25) -9.1% |
| Revolutions per mile (km) | 905.23 (562.48) | 973.9 (605.15) | 68.67 (42.67) 7.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.59 mph (29.92 km/h) |
| 25 mph (40.23 km/h) | 23.24 mph (37.4 km/h) |
| 30 mph (48.28 km/h) | 27.88 mph (44.88 km/h) |
| 35 mph (56.33 km/h) | 32.53 mph (52.36 km/h) |
| 40 mph (64.37 km/h) | 37.18 mph (59.84 km/h) |
| 45 mph (72.42 km/h) | 41.83 mph (67.31 km/h) |
| 50 mph (80.47 km/h) | 46.47 mph (74.79 km/h) |
| 55 mph (88.51 km/h) | 51.12 mph (82.27 km/h) |
| 60 mph (96.56 km/h) | 55.77 mph (89.75 km/h) |
| 65 mph (104.61 km/h) | 60.42 mph (97.23 km/h) |
| 70 mph (112.65 km/h) | 65.06 mph (104.71 km/h) |
| 75 mph (120.7 km/h) | 69.71 mph (112.19 km/h) |
| 80 mph (128.75 km/h) | 74.36 mph (119.67 km/h) |
| 85 mph (136.79 km/h) | 79.01 mph (127.15 km/h) |
| 90 mph (144.84 km/h) | 83.65 mph (134.63 km/h) |
| 95 mph (152.89 km/h) | 88.3 mph (142.11 km/h) |
| 100 mph (160.93 km/h) | 92.95 mph (149.59 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
