Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 280/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 31.64 (803.6) | 6.3 (160) 24.9% |
| Width inches (mm) | 7.09 (180) | 11.02 (280) | 3.94 (100) 55.6% |
| Circum. inches (mm) | 79.6 (2021.93) | 99.39 (2524.58) | 19.79 (502.65) 24.9% |
| Sidewall Height inches (mm) | 5.67 (144) | 8.82 (224) | 3.15 (80) 55.6% |
| Revolutions per mile (km) | 795.94 (494.58) | 637.47 (396.1) | -158.48 (-98.47) -19.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.97 mph (40.19 km/h) |
| 25 mph (40.23 km/h) | 31.22 mph (50.24 km/h) |
| 30 mph (48.28 km/h) | 37.46 mph (60.28 km/h) |
| 35 mph (56.33 km/h) | 43.7 mph (70.33 km/h) |
| 40 mph (64.37 km/h) | 49.94 mph (80.38 km/h) |
| 45 mph (72.42 km/h) | 56.19 mph (90.42 km/h) |
| 50 mph (80.47 km/h) | 62.43 mph (100.47 km/h) |
| 55 mph (88.51 km/h) | 68.67 mph (110.52 km/h) |
| 60 mph (96.56 km/h) | 74.92 mph (120.57 km/h) |
| 65 mph (104.61 km/h) | 81.16 mph (130.61 km/h) |
| 70 mph (112.65 km/h) | 87.4 mph (140.66 km/h) |
| 75 mph (120.7 km/h) | 93.65 mph (150.71 km/h) |
| 80 mph (128.75 km/h) | 99.89 mph (160.75 km/h) |
| 85 mph (136.79 km/h) | 106.13 mph (170.8 km/h) |
| 90 mph (144.84 km/h) | 112.37 mph (180.85 km/h) |
| 95 mph (152.89 km/h) | 118.62 mph (190.9 km/h) |
| 100 mph (160.93 km/h) | 124.86 mph (200.94 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1622 | 1885 | 2030 | 2119 | 2216 | 2285 | 2361 | 2451 | 2575 | 2699 | 2837 | 2948 | 3148 | 3369 | 3541 | 3652 | 3714 | 3942 | 4259 | 4950 |
Better Fuel Economy Factory Ratios Increased Power
