Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/40-19 | 255/45-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.98 (710.6) | 28.04 (712.1) | 0.06 (1.5) 0.2% |
| Width inches (mm) | 11.22 (285) | 10.04 (255) | -1.18 (-30) -10.5% |
| Circum. inches (mm) | 87.89 (2232.42) | 88.08 (2237.13) | 0.19 (4.71) 0.2% |
| Sidewall Height inches (mm) | 4.49 (114) | 4.52 (114.75) | 0.03 (0.75) 0.7% |
| Revolutions per mile (km) | 720.9 (447.94) | 719.38 (447) | -1.52 (-0.94) -0.2% |
255/45-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.04 mph (32.25 km/h) |
| 25 mph (40.23 km/h) | 25.05 mph (40.32 km/h) |
| 30 mph (48.28 km/h) | 30.06 mph (48.38 km/h) |
| 35 mph (56.33 km/h) | 35.07 mph (56.45 km/h) |
| 40 mph (64.37 km/h) | 40.08 mph (64.51 km/h) |
| 45 mph (72.42 km/h) | 45.09 mph (72.57 km/h) |
| 50 mph (80.47 km/h) | 50.11 mph (80.64 km/h) |
| 55 mph (88.51 km/h) | 55.12 mph (88.7 km/h) |
| 60 mph (96.56 km/h) | 60.13 mph (96.76 km/h) |
| 65 mph (104.61 km/h) | 65.14 mph (104.83 km/h) |
| 70 mph (112.65 km/h) | 70.15 mph (112.89 km/h) |
| 75 mph (120.7 km/h) | 75.16 mph (120.96 km/h) |
| 80 mph (128.75 km/h) | 80.17 mph (129.02 km/h) |
| 85 mph (136.79 km/h) | 85.18 mph (137.08 km/h) |
| 90 mph (144.84 km/h) | 90.19 mph (145.15 km/h) |
| 95 mph (152.89 km/h) | 95.2 mph (153.21 km/h) |
| 100 mph (160.93 km/h) | 100.21 mph (161.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1831 | 2127 | 2290 | 2392 | 2501 | 2579 | 2664 | 2766 | 2906 | 3046 | 3202 | 3326 | 3552 | 3802 | 3996 | 4121 | 4191 | 4448 | 4807 | 5586 |
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