Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/60-18 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.52 (775.2) | 32.99 (838) | 2.47 (62.8) 8.1% |
| Width inches (mm) | 10.43 (265) | 10.83 (275) | 0.39 (10) 3.8% |
| Circum. inches (mm) | 95.88 (2435.36) | 103.65 (2632.65) | 7.77 (197.29) 8.1% |
| Sidewall Height inches (mm) | 6.26 (159) | 6.5 (165) | 0.24 (6) 3.8% |
| Revolutions per mile (km) | 660.82 (410.62) | 611.3 (379.84) | -49.52 (-30.77) -7.5% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.62 mph (34.79 km/h) |
| 25 mph (40.23 km/h) | 27.03 mph (43.49 km/h) |
| 30 mph (48.28 km/h) | 32.43 mph (52.19 km/h) |
| 35 mph (56.33 km/h) | 37.84 mph (60.89 km/h) |
| 40 mph (64.37 km/h) | 43.24 mph (69.59 km/h) |
| 45 mph (72.42 km/h) | 48.65 mph (78.29 km/h) |
| 50 mph (80.47 km/h) | 54.05 mph (86.99 km/h) |
| 55 mph (88.51 km/h) | 59.46 mph (95.68 km/h) |
| 60 mph (96.56 km/h) | 64.86 mph (104.38 km/h) |
| 65 mph (104.61 km/h) | 70.27 mph (113.08 km/h) |
| 70 mph (112.65 km/h) | 75.67 mph (121.78 km/h) |
| 75 mph (120.7 km/h) | 81.08 mph (130.48 km/h) |
| 80 mph (128.75 km/h) | 86.48 mph (139.18 km/h) |
| 85 mph (136.79 km/h) | 91.89 mph (147.88 km/h) |
| 90 mph (144.84 km/h) | 97.29 mph (156.58 km/h) |
| 95 mph (152.89 km/h) | 102.7 mph (165.27 km/h) |
| 100 mph (160.93 km/h) | 108.1 mph (173.97 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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