Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 275/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 36.24 (920.5) | 10.83 (275) 42.6% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 79.84 (2027.9) | 113.85 (2891.84) | 34.01 (863.94) 42.6% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 8.12 (206.25) | 5.41 (137.5) 200% |
| Revolutions per mile (km) | 793.6 (493.12) | 556.51 (345.8) | -237.09 (-147.32) -29.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.52 mph (45.9 km/h) |
| 25 mph (40.23 km/h) | 35.65 mph (57.37 km/h) |
| 30 mph (48.28 km/h) | 42.78 mph (68.85 km/h) |
| 35 mph (56.33 km/h) | 49.91 mph (80.32 km/h) |
| 40 mph (64.37 km/h) | 57.04 mph (91.8 km/h) |
| 45 mph (72.42 km/h) | 64.17 mph (103.27 km/h) |
| 50 mph (80.47 km/h) | 71.3 mph (114.75 km/h) |
| 55 mph (88.51 km/h) | 78.43 mph (126.22 km/h) |
| 60 mph (96.56 km/h) | 85.56 mph (137.7 km/h) |
| 65 mph (104.61 km/h) | 92.69 mph (149.17 km/h) |
| 70 mph (112.65 km/h) | 99.82 mph (160.65 km/h) |
| 75 mph (120.7 km/h) | 106.95 mph (172.12 km/h) |
| 80 mph (128.75 km/h) | 114.08 mph (183.6 km/h) |
| 85 mph (136.79 km/h) | 121.21 mph (195.07 km/h) |
| 90 mph (144.84 km/h) | 128.34 mph (206.55 km/h) |
| 95 mph (152.89 km/h) | 135.47 mph (218.02 km/h) |
| 100 mph (160.93 km/h) | 142.6 mph (229.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1416 | 1645 | 1772 | 1850 | 1934 | 1995 | 2061 | 2139 | 2248 | 2356 | 2477 | 2573 | 2748 | 2941 | 3092 | 3188 | 3242 | 3441 | 3718 | 4321 |
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