Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-20 | 275/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.91 (810.5) | 30.83 (783) | -1.08 (-27.5) -3.4% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 100.25 (2546.26) | 96.85 (2459.87) | -3.4 (-86.39) -3.4% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 5.41 (137.5) | -0.54 (-13.75) -9.1% |
| Revolutions per mile (km) | 632.04 (392.73) | 654.24 (406.53) | 22.2 (13.79) 3.5% |
275/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.32 mph (31.09 km/h) |
| 25 mph (40.23 km/h) | 24.15 mph (38.87 km/h) |
| 30 mph (48.28 km/h) | 28.98 mph (46.64 km/h) |
| 35 mph (56.33 km/h) | 33.81 mph (54.42 km/h) |
| 40 mph (64.37 km/h) | 38.64 mph (62.19 km/h) |
| 45 mph (72.42 km/h) | 43.47 mph (69.96 km/h) |
| 50 mph (80.47 km/h) | 48.3 mph (77.74 km/h) |
| 55 mph (88.51 km/h) | 53.13 mph (85.51 km/h) |
| 60 mph (96.56 km/h) | 57.96 mph (93.28 km/h) |
| 65 mph (104.61 km/h) | 62.79 mph (101.06 km/h) |
| 70 mph (112.65 km/h) | 67.62 mph (108.83 km/h) |
| 75 mph (120.7 km/h) | 72.46 mph (116.61 km/h) |
| 80 mph (128.75 km/h) | 77.29 mph (124.38 km/h) |
| 85 mph (136.79 km/h) | 82.12 mph (132.15 km/h) |
| 90 mph (144.84 km/h) | 86.95 mph (139.93 km/h) |
| 95 mph (152.89 km/h) | 91.78 mph (147.7 km/h) |
| 100 mph (160.93 km/h) | 96.61 mph (155.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1665 | 1934 | 2083 | 2175 | 2274 | 2345 | 2423 | 2515 | 2643 | 2770 | 2912 | 3025 | 3231 | 3457 | 3634 | 3748 | 3812 | 4045 | 4371 | 5080 |
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