Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/45-20 | 275/50-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.39 (746.5) | 30.83 (783) | 1.44 (36.5) 4.9% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 92.33 (2345.2) | 96.85 (2459.87) | 4.51 (114.67) 4.9% |
| Sidewall Height inches (mm) | 4.69 (119.25) | 5.41 (137.5) | 0.72 (18.25) 15.3% |
| Revolutions per mile (km) | 686.23 (426.4) | 654.24 (406.53) | -31.99 (-19.88) -4.7% |
275/50-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.98 mph (33.76 km/h) |
| 25 mph (40.23 km/h) | 26.22 mph (42.2 km/h) |
| 30 mph (48.28 km/h) | 31.47 mph (50.64 km/h) |
| 35 mph (56.33 km/h) | 36.71 mph (59.08 km/h) |
| 40 mph (64.37 km/h) | 41.96 mph (67.52 km/h) |
| 45 mph (72.42 km/h) | 47.2 mph (75.96 km/h) |
| 50 mph (80.47 km/h) | 52.44 mph (84.4 km/h) |
| 55 mph (88.51 km/h) | 57.69 mph (92.84 km/h) |
| 60 mph (96.56 km/h) | 62.93 mph (101.28 km/h) |
| 65 mph (104.61 km/h) | 68.18 mph (109.72 km/h) |
| 70 mph (112.65 km/h) | 73.42 mph (118.16 km/h) |
| 75 mph (120.7 km/h) | 78.67 mph (126.6 km/h) |
| 80 mph (128.75 km/h) | 83.91 mph (135.04 km/h) |
| 85 mph (136.79 km/h) | 89.16 mph (143.48 km/h) |
| 90 mph (144.84 km/h) | 94.4 mph (151.92 km/h) |
| 95 mph (152.89 km/h) | 99.65 mph (160.36 km/h) |
| 100 mph (160.93 km/h) | 104.89 mph (168.8 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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