Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/45-21 | 255/60-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.1 (789.9) | 31.05 (788.6) | -0.05 (-1.3) -0.2% |
| Width inches (mm) | 11.22 (285) | 10.04 (255) | -1.18 (-30) -10.5% |
| Circum. inches (mm) | 97.7 (2481.54) | 97.54 (2477.46) | -0.16 (-4.08) -0.2% |
| Sidewall Height inches (mm) | 5.05 (128.25) | 6.02 (153) | 0.97 (24.75) 19.3% |
| Revolutions per mile (km) | 648.53 (402.97) | 649.59 (403.64) | 1.07 (0.66) 0.2% |
255/60-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.97 mph (32.13 km/h) |
| 25 mph (40.23 km/h) | 24.96 mph (40.17 km/h) |
| 30 mph (48.28 km/h) | 29.95 mph (48.2 km/h) |
| 35 mph (56.33 km/h) | 34.94 mph (56.23 km/h) |
| 40 mph (64.37 km/h) | 39.93 mph (64.27 km/h) |
| 45 mph (72.42 km/h) | 44.93 mph (72.3 km/h) |
| 50 mph (80.47 km/h) | 49.92 mph (80.33 km/h) |
| 55 mph (88.51 km/h) | 54.91 mph (88.37 km/h) |
| 60 mph (96.56 km/h) | 59.9 mph (96.4 km/h) |
| 65 mph (104.61 km/h) | 64.89 mph (104.44 km/h) |
| 70 mph (112.65 km/h) | 69.88 mph (112.47 km/h) |
| 75 mph (120.7 km/h) | 74.88 mph (120.5 km/h) |
| 80 mph (128.75 km/h) | 79.87 mph (128.54 km/h) |
| 85 mph (136.79 km/h) | 84.86 mph (136.57 km/h) |
| 90 mph (144.84 km/h) | 89.85 mph (144.6 km/h) |
| 95 mph (152.89 km/h) | 94.84 mph (152.64 km/h) |
| 100 mph (160.93 km/h) | 99.84 mph (160.67 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1653 | 1920 | 2068 | 2160 | 2258 | 2328 | 2406 | 2497 | 2624 | 2750 | 2891 | 3004 | 3208 | 3433 | 3609 | 3721 | 3785 | 4017 | 4340 | 5044 |
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