Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-13 | 180/79-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.34 (618.2) | 24.2 (614.6) | -0.14 (-3.6) -0.6% |
| Width inches (mm) | 7.09 (180) | 7.09 (180) | 0 (0) 0% |
| Circum. inches (mm) | 76.46 (1942.13) | 76.02 (1930.82) | -0.45 (-11.31) -0.6% |
| Sidewall Height inches (mm) | 5.67 (144) | 5.6 (142.2) | -0.07 (-1.8) -1.3% |
| Revolutions per mile (km) | 828.65 (514.9) | 833.5 (517.91) | 4.85 (3.02) 0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.88 mph (32 km/h) |
| 25 mph (40.23 km/h) | 24.85 mph (40 km/h) |
| 30 mph (48.28 km/h) | 29.83 mph (48 km/h) |
| 35 mph (56.33 km/h) | 34.8 mph (56 km/h) |
| 40 mph (64.37 km/h) | 39.77 mph (64 km/h) |
| 45 mph (72.42 km/h) | 44.74 mph (72 km/h) |
| 50 mph (80.47 km/h) | 49.71 mph (80 km/h) |
| 55 mph (88.51 km/h) | 54.68 mph (88 km/h) |
| 60 mph (96.56 km/h) | 59.65 mph (96 km/h) |
| 65 mph (104.61 km/h) | 64.62 mph (104 km/h) |
| 70 mph (112.65 km/h) | 69.59 mph (112 km/h) |
| 75 mph (120.7 km/h) | 74.56 mph (120 km/h) |
| 80 mph (128.75 km/h) | 79.53 mph (128 km/h) |
| 85 mph (136.79 km/h) | 84.51 mph (136 km/h) |
| 90 mph (144.84 km/h) | 89.48 mph (144 km/h) |
| 95 mph (152.89 km/h) | 94.45 mph (152 km/h) |
| 100 mph (160.93 km/h) | 99.42 mph (160 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2121 | 2464 | 2654 | 2771 | 2897 | 2988 | 3087 | 3204 | 3367 | 3529 | 3710 | 3854 | 4116 | 4405 | 4630 | 4775 | 4856 | 5154 | 5569 | 6472 |
Better Fuel Economy Factory Ratios Increased Power
