Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/60-20 | 275/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.35 (898) | 32.99 (838) | -2.36 (-60) -6.7% |
| Width inches (mm) | 12.8 (325) | 10.83 (275) | -1.97 (-50) -15.4% |
| Circum. inches (mm) | 111.07 (2821.15) | 103.65 (2632.65) | -7.42 (-188.5) -6.7% |
| Sidewall Height inches (mm) | 7.68 (195) | 6.5 (165) | -1.18 (-30) -15.4% |
| Revolutions per mile (km) | 570.46 (354.46) | 611.3 (379.84) | 40.84 (25.38) 7.2% |
275/60-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.66 mph (30.04 km/h) |
| 25 mph (40.23 km/h) | 23.33 mph (37.55 km/h) |
| 30 mph (48.28 km/h) | 28 mph (45.05 km/h) |
| 35 mph (56.33 km/h) | 32.66 mph (52.56 km/h) |
| 40 mph (64.37 km/h) | 37.33 mph (60.07 km/h) |
| 45 mph (72.42 km/h) | 41.99 mph (67.58 km/h) |
| 50 mph (80.47 km/h) | 46.66 mph (75.09 km/h) |
| 55 mph (88.51 km/h) | 51.33 mph (82.6 km/h) |
| 60 mph (96.56 km/h) | 55.99 mph (90.11 km/h) |
| 65 mph (104.61 km/h) | 60.66 mph (97.62 km/h) |
| 70 mph (112.65 km/h) | 65.32 mph (105.13 km/h) |
| 75 mph (120.7 km/h) | 69.99 mph (112.64 km/h) |
| 80 mph (128.75 km/h) | 74.65 mph (120.15 km/h) |
| 85 mph (136.79 km/h) | 79.32 mph (127.65 km/h) |
| 90 mph (144.84 km/h) | 83.99 mph (135.16 km/h) |
| 95 mph (152.89 km/h) | 88.65 mph (142.67 km/h) |
| 100 mph (160.93 km/h) | 93.32 mph (150.18 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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