Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/45-20 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.74 (755.5) | 32.99 (838) | 3.25 (82.5) 10.9% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 93.44 (2373.47) | 103.65 (2632.65) | 10.2 (259.18) 10.9% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 6.5 (165) | 1.62 (41.25) 33.3% |
| Revolutions per mile (km) | 678.05 (421.32) | 611.3 (379.84) | -66.75 (-41.48) -9.8% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.18 mph (35.7 km/h) |
| 25 mph (40.23 km/h) | 27.73 mph (44.63 km/h) |
| 30 mph (48.28 km/h) | 33.28 mph (53.55 km/h) |
| 35 mph (56.33 km/h) | 38.82 mph (62.48 km/h) |
| 40 mph (64.37 km/h) | 44.37 mph (71.4 km/h) |
| 45 mph (72.42 km/h) | 49.91 mph (80.33 km/h) |
| 50 mph (80.47 km/h) | 55.46 mph (89.25 km/h) |
| 55 mph (88.51 km/h) | 61.01 mph (98.18 km/h) |
| 60 mph (96.56 km/h) | 66.55 mph (107.11 km/h) |
| 65 mph (104.61 km/h) | 72.1 mph (116.03 km/h) |
| 70 mph (112.65 km/h) | 77.64 mph (124.96 km/h) |
| 75 mph (120.7 km/h) | 83.19 mph (133.88 km/h) |
| 80 mph (128.75 km/h) | 88.74 mph (142.81 km/h) |
| 85 mph (136.79 km/h) | 94.28 mph (151.73 km/h) |
| 90 mph (144.84 km/h) | 99.83 mph (160.66 km/h) |
| 95 mph (152.89 km/h) | 105.37 mph (169.58 km/h) |
| 100 mph (160.93 km/h) | 110.92 mph (178.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1556 | 1807 | 1946 | 2032 | 2125 | 2191 | 2264 | 2350 | 2469 | 2588 | 2721 | 2827 | 3019 | 3230 | 3396 | 3502 | 3561 | 3780 | 4084 | 4746 |
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