Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/80-22.5 | 270/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 38.56 (979.5) | 37.38 (949.5) | -1.18 (-30) -3.1% |
| Width inches (mm) | 10.04 (255) | 10.63 (270) | 0.59 (15) 5.9% |
| Circum. inches (mm) | 121.15 (3077.19) | 117.44 (2982.94) | -3.71 (-94.25) -3.1% |
| Sidewall Height inches (mm) | 8.03 (204) | 7.44 (189) | -0.59 (-15) -7.4% |
| Revolutions per mile (km) | 522.99 (324.97) | 539.52 (335.24) | 16.52 (10.27) 3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.39 mph (31.2 km/h) |
| 25 mph (40.23 km/h) | 24.23 mph (39 km/h) |
| 30 mph (48.28 km/h) | 29.08 mph (46.8 km/h) |
| 35 mph (56.33 km/h) | 33.93 mph (54.6 km/h) |
| 40 mph (64.37 km/h) | 38.77 mph (62.4 km/h) |
| 45 mph (72.42 km/h) | 43.62 mph (70.2 km/h) |
| 50 mph (80.47 km/h) | 48.47 mph (78 km/h) |
| 55 mph (88.51 km/h) | 53.32 mph (85.8 km/h) |
| 60 mph (96.56 km/h) | 58.16 mph (93.6 km/h) |
| 65 mph (104.61 km/h) | 63.01 mph (101.4 km/h) |
| 70 mph (112.65 km/h) | 67.86 mph (109.2 km/h) |
| 75 mph (120.7 km/h) | 72.7 mph (117 km/h) |
| 80 mph (128.75 km/h) | 77.55 mph (124.8 km/h) |
| 85 mph (136.79 km/h) | 82.4 mph (132.6 km/h) |
| 90 mph (144.84 km/h) | 87.24 mph (140.41 km/h) |
| 95 mph (152.89 km/h) | 92.09 mph (148.21 km/h) |
| 100 mph (160.93 km/h) | 96.94 mph (156.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1373 | 1595 | 1718 | 1794 | 1875 | 1934 | 1998 | 2074 | 2179 | 2284 | 2401 | 2495 | 2664 | 2851 | 2997 | 3091 | 3143 | 3336 | 3605 | 4189 |
Better Fuel Economy Factory Ratios Increased Power
