Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/60-20 | 395/85-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.99 (838) | 46.44 (1179.5) | 13.44 (341.5) 40.8% |
| Width inches (mm) | 10.83 (275) | 15.55 (395) | 4.72 (120) 43.6% |
| Circum. inches (mm) | 103.65 (2632.65) | 145.89 (3705.51) | 42.24 (1072.85) 40.8% |
| Sidewall Height inches (mm) | 6.5 (165) | 13.22 (335.75) | 6.72 (170.75) 103.5% |
| Revolutions per mile (km) | 611.3 (379.84) | 434.31 (269.87) | -176.99 (-109.98) -29% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.15 mph (45.3 km/h) |
| 25 mph (40.23 km/h) | 35.19 mph (56.63 km/h) |
| 30 mph (48.28 km/h) | 42.23 mph (67.96 km/h) |
| 35 mph (56.33 km/h) | 49.26 mph (79.28 km/h) |
| 40 mph (64.37 km/h) | 56.3 mph (90.61 km/h) |
| 45 mph (72.42 km/h) | 63.34 mph (101.93 km/h) |
| 50 mph (80.47 km/h) | 70.38 mph (113.26 km/h) |
| 55 mph (88.51 km/h) | 77.41 mph (124.59 km/h) |
| 60 mph (96.56 km/h) | 84.45 mph (135.91 km/h) |
| 65 mph (104.61 km/h) | 91.49 mph (147.24 km/h) |
| 70 mph (112.65 km/h) | 98.53 mph (158.56 km/h) |
| 75 mph (120.7 km/h) | 105.56 mph (169.89 km/h) |
| 80 mph (128.75 km/h) | 112.6 mph (181.21 km/h) |
| 85 mph (136.79 km/h) | 119.64 mph (192.54 km/h) |
| 90 mph (144.84 km/h) | 126.68 mph (203.87 km/h) |
| 95 mph (152.89 km/h) | 133.71 mph (215.19 km/h) |
| 100 mph (160.93 km/h) | 140.75 mph (226.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
