Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/65-17 | 275/65-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.07 (789.3) | 34.07 (865.5) | 3 (76.2) 9.7% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 97.62 (2479.66) | 107.05 (2719.05) | 9.42 (239.39) 9.7% |
| Sidewall Height inches (mm) | 7.04 (178.75) | 7.04 (178.75) | 0 (0) 0% |
| Revolutions per mile (km) | 649.02 (403.28) | 591.88 (367.78) | -57.14 (-35.51) -8.8% |
275/65-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.93 mph (35.29 km/h) |
| 25 mph (40.23 km/h) | 27.41 mph (44.12 km/h) |
| 30 mph (48.28 km/h) | 32.9 mph (52.94 km/h) |
| 35 mph (56.33 km/h) | 38.38 mph (61.77 km/h) |
| 40 mph (64.37 km/h) | 43.86 mph (70.59 km/h) |
| 45 mph (72.42 km/h) | 49.34 mph (79.41 km/h) |
| 50 mph (80.47 km/h) | 54.83 mph (88.24 km/h) |
| 55 mph (88.51 km/h) | 60.31 mph (97.06 km/h) |
| 60 mph (96.56 km/h) | 65.79 mph (105.88 km/h) |
| 65 mph (104.61 km/h) | 71.28 mph (114.71 km/h) |
| 70 mph (112.65 km/h) | 76.76 mph (123.53 km/h) |
| 75 mph (120.7 km/h) | 82.24 mph (132.35 km/h) |
| 80 mph (128.75 km/h) | 87.72 mph (141.18 km/h) |
| 85 mph (136.79 km/h) | 93.21 mph (150 km/h) |
| 90 mph (144.84 km/h) | 98.69 mph (158.82 km/h) |
| 95 mph (152.89 km/h) | 104.17 mph (167.65 km/h) |
| 100 mph (160.93 km/h) | 109.65 mph (176.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1506 | 1750 | 1884 | 1968 | 2057 | 2122 | 2192 | 2275 | 2391 | 2506 | 2634 | 2737 | 2923 | 3128 | 3288 | 3391 | 3448 | 3660 | 3955 | 4596 |
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