Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/40-22 | 285/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.29 (794.8) | 31.22 (793) | -0.07 (-1.8) -0.2% |
| Width inches (mm) | 11.61 (295) | 11.22 (285) | -0.39 (-10) -3.4% |
| Circum. inches (mm) | 98.3 (2496.94) | 98.08 (2491.28) | -0.22 (-5.65) -0.2% |
| Sidewall Height inches (mm) | 4.65 (118) | 5.61 (142.5) | 0.96 (24.5) 20.8% |
| Revolutions per mile (km) | 644.53 (400.49) | 645.99 (401.4) | 1.46 (0.91) 0.2% |
285/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.95 mph (32.11 km/h) |
| 25 mph (40.23 km/h) | 24.94 mph (40.14 km/h) |
| 30 mph (48.28 km/h) | 29.93 mph (48.17 km/h) |
| 35 mph (56.33 km/h) | 34.92 mph (56.2 km/h) |
| 40 mph (64.37 km/h) | 39.91 mph (64.23 km/h) |
| 45 mph (72.42 km/h) | 44.9 mph (72.26 km/h) |
| 50 mph (80.47 km/h) | 49.89 mph (80.29 km/h) |
| 55 mph (88.51 km/h) | 54.88 mph (88.31 km/h) |
| 60 mph (96.56 km/h) | 59.86 mph (96.34 km/h) |
| 65 mph (104.61 km/h) | 64.85 mph (104.37 km/h) |
| 70 mph (112.65 km/h) | 69.84 mph (112.4 km/h) |
| 75 mph (120.7 km/h) | 74.83 mph (120.43 km/h) |
| 80 mph (128.75 km/h) | 79.82 mph (128.46 km/h) |
| 85 mph (136.79 km/h) | 84.81 mph (136.48 km/h) |
| 90 mph (144.84 km/h) | 89.8 mph (144.51 km/h) |
| 95 mph (152.89 km/h) | 94.78 mph (152.54 km/h) |
| 100 mph (160.93 km/h) | 99.77 mph (160.57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1644 | 1910 | 2057 | 2148 | 2246 | 2315 | 2392 | 2483 | 2609 | 2735 | 2875 | 2987 | 3190 | 3414 | 3589 | 3701 | 3764 | 3994 | 4316 | 5016 |
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