Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/70-20 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.71 (907) | 32.99 (838) | -2.72 (-69) -7.6% |
| Width inches (mm) | 11.22 (285) | 10.83 (275) | -0.39 (-10) -3.5% |
| Circum. inches (mm) | 112.18 (2849.42) | 103.65 (2632.65) | -8.53 (-216.77) -7.6% |
| Sidewall Height inches (mm) | 7.85 (199.5) | 6.5 (165) | -1.36 (-34.5) -17.3% |
| Revolutions per mile (km) | 564.8 (350.95) | 611.3 (379.84) | 46.5 (28.9) 8.2% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.48 mph (29.74 km/h) |
| 25 mph (40.23 km/h) | 23.1 mph (37.17 km/h) |
| 30 mph (48.28 km/h) | 27.72 mph (44.61 km/h) |
| 35 mph (56.33 km/h) | 32.34 mph (52.04 km/h) |
| 40 mph (64.37 km/h) | 36.96 mph (59.48 km/h) |
| 45 mph (72.42 km/h) | 41.58 mph (66.91 km/h) |
| 50 mph (80.47 km/h) | 46.2 mph (74.35 km/h) |
| 55 mph (88.51 km/h) | 50.82 mph (81.78 km/h) |
| 60 mph (96.56 km/h) | 55.44 mph (89.21 km/h) |
| 65 mph (104.61 km/h) | 60.06 mph (96.65 km/h) |
| 70 mph (112.65 km/h) | 64.67 mph (104.08 km/h) |
| 75 mph (120.7 km/h) | 69.29 mph (111.52 km/h) |
| 80 mph (128.75 km/h) | 73.91 mph (118.95 km/h) |
| 85 mph (136.79 km/h) | 78.53 mph (126.39 km/h) |
| 90 mph (144.84 km/h) | 83.15 mph (133.82 km/h) |
| 95 mph (152.89 km/h) | 87.77 mph (141.26 km/h) |
| 100 mph (160.93 km/h) | 92.39 mph (148.69 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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