Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/55-22 | 275/65-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.21 (894.3) | 34.07 (865.5) | -1.13 (-28.8) -3.2% |
| Width inches (mm) | 12.01 (305) | 10.83 (275) | -1.18 (-30) -9.8% |
| Circum. inches (mm) | 110.61 (2809.53) | 107.05 (2719.05) | -3.56 (-90.48) -3.2% |
| Sidewall Height inches (mm) | 6.6 (167.75) | 7.04 (178.75) | 0.43 (11) 6.6% |
| Revolutions per mile (km) | 572.82 (355.93) | 591.88 (367.78) | 19.06 (11.84) 3.3% |
275/65-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.36 mph (31.15 km/h) |
| 25 mph (40.23 km/h) | 24.19 mph (38.94 km/h) |
| 30 mph (48.28 km/h) | 29.03 mph (46.73 km/h) |
| 35 mph (56.33 km/h) | 33.87 mph (54.51 km/h) |
| 40 mph (64.37 km/h) | 38.71 mph (62.3 km/h) |
| 45 mph (72.42 km/h) | 43.55 mph (70.09 km/h) |
| 50 mph (80.47 km/h) | 48.39 mph (77.88 km/h) |
| 55 mph (88.51 km/h) | 53.23 mph (85.66 km/h) |
| 60 mph (96.56 km/h) | 58.07 mph (93.45 km/h) |
| 65 mph (104.61 km/h) | 62.91 mph (101.24 km/h) |
| 70 mph (112.65 km/h) | 67.75 mph (109.03 km/h) |
| 75 mph (120.7 km/h) | 72.58 mph (116.81 km/h) |
| 80 mph (128.75 km/h) | 77.42 mph (124.6 km/h) |
| 85 mph (136.79 km/h) | 82.26 mph (132.39 km/h) |
| 90 mph (144.84 km/h) | 87.1 mph (140.18 km/h) |
| 95 mph (152.89 km/h) | 91.94 mph (147.96 km/h) |
| 100 mph (160.93 km/h) | 96.78 mph (155.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1506 | 1750 | 1884 | 1968 | 2057 | 2122 | 2192 | 2275 | 2391 | 2506 | 2634 | 2737 | 2923 | 3128 | 3288 | 3391 | 3448 | 3660 | 3955 | 4596 |
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