Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/55-19 | 275/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.91 (785.1) | 31.91 (810.5) | 1 (25.4) 3.2% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 97.1 (2466.46) | 100.25 (2546.26) | 3.14 (79.8) 3.2% |
| Sidewall Height inches (mm) | 5.95 (151.25) | 5.95 (151.25) | 0 (0) 0% |
| Revolutions per mile (km) | 652.49 (405.44) | 632.04 (392.73) | -20.45 (-12.71) -3.1% |
275/55-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.65 mph (33.23 km/h) |
| 25 mph (40.23 km/h) | 25.81 mph (41.54 km/h) |
| 30 mph (48.28 km/h) | 30.97 mph (49.84 km/h) |
| 35 mph (56.33 km/h) | 36.13 mph (58.15 km/h) |
| 40 mph (64.37 km/h) | 41.29 mph (66.46 km/h) |
| 45 mph (72.42 km/h) | 46.46 mph (74.76 km/h) |
| 50 mph (80.47 km/h) | 51.62 mph (83.07 km/h) |
| 55 mph (88.51 km/h) | 56.78 mph (91.38 km/h) |
| 60 mph (96.56 km/h) | 61.94 mph (99.68 km/h) |
| 65 mph (104.61 km/h) | 67.1 mph (107.99 km/h) |
| 70 mph (112.65 km/h) | 72.26 mph (116.3 km/h) |
| 75 mph (120.7 km/h) | 77.43 mph (124.61 km/h) |
| 80 mph (128.75 km/h) | 82.59 mph (132.91 km/h) |
| 85 mph (136.79 km/h) | 87.75 mph (141.22 km/h) |
| 90 mph (144.84 km/h) | 92.91 mph (149.53 km/h) |
| 95 mph (152.89 km/h) | 98.07 mph (157.83 km/h) |
| 100 mph (160.93 km/h) | 103.24 mph (166.14 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1608 | 1869 | 2012 | 2101 | 2197 | 2265 | 2341 | 2430 | 2553 | 2676 | 2813 | 2923 | 3121 | 3340 | 3511 | 3621 | 3682 | 3908 | 4223 | 4907 |
Better Fuel Economy Factory Ratios Increased Power
