Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/60-16 | 175/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.5 (622.4) | 26.33 (668.9) | 1.83 (46.5) 7.5% |
| Width inches (mm) | 7.09 (180) | 6.89 (175) | -0.2 (-5) -2.8% |
| Circum. inches (mm) | 76.98 (1955.33) | 82.73 (2101.41) | 5.75 (146.08) 7.5% |
| Sidewall Height inches (mm) | 4.25 (108) | 5.17 (131.25) | 0.92 (23.25) 21.5% |
| Revolutions per mile (km) | 823.06 (511.42) | 765.84 (475.87) | -57.22 (-35.55) -7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.49 mph (34.59 km/h) |
| 25 mph (40.23 km/h) | 26.87 mph (43.24 km/h) |
| 30 mph (48.28 km/h) | 32.24 mph (51.89 km/h) |
| 35 mph (56.33 km/h) | 37.61 mph (60.54 km/h) |
| 40 mph (64.37 km/h) | 42.99 mph (69.18 km/h) |
| 45 mph (72.42 km/h) | 48.36 mph (77.83 km/h) |
| 50 mph (80.47 km/h) | 53.74 mph (86.48 km/h) |
| 55 mph (88.51 km/h) | 59.11 mph (95.13 km/h) |
| 60 mph (96.56 km/h) | 64.48 mph (103.77 km/h) |
| 65 mph (104.61 km/h) | 69.86 mph (112.42 km/h) |
| 70 mph (112.65 km/h) | 75.23 mph (121.07 km/h) |
| 75 mph (120.7 km/h) | 80.6 mph (129.72 km/h) |
| 80 mph (128.75 km/h) | 85.98 mph (138.37 km/h) |
| 85 mph (136.79 km/h) | 91.35 mph (147.01 km/h) |
| 90 mph (144.84 km/h) | 96.72 mph (155.66 km/h) |
| 95 mph (152.89 km/h) | 102.1 mph (164.31 km/h) |
| 100 mph (160.93 km/h) | 107.47 mph (172.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1949 | 2264 | 2438 | 2546 | 2662 | 2745 | 2836 | 2944 | 3093 | 3243 | 3409 | 3541 | 3782 | 4047 | 4254 | 4387 | 4462 | 4735 | 5117 | 5946 |
Better Fuel Economy Factory Ratios Increased Power
