Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/70-22.5 | 315/80-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.56 (928.5) | 42.34 (1075.5) | 5.79 (147) 15.8% |
| Width inches (mm) | 10.04 (255) | 12.4 (315) | 2.36 (60) 23.5% |
| Circum. inches (mm) | 114.84 (2916.97) | 133.02 (3378.78) | 18.18 (461.81) 15.8% |
| Sidewall Height inches (mm) | 7.03 (178.5) | 9.92 (252) | 2.89 (73.5) 41.2% |
| Revolutions per mile (km) | 551.72 (342.82) | 476.31 (295.96) | -75.41 (-46.86) -13.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.17 mph (37.28 km/h) |
| 25 mph (40.23 km/h) | 28.96 mph (46.6 km/h) |
| 30 mph (48.28 km/h) | 34.75 mph (55.92 km/h) |
| 35 mph (56.33 km/h) | 40.54 mph (65.24 km/h) |
| 40 mph (64.37 km/h) | 46.33 mph (74.57 km/h) |
| 45 mph (72.42 km/h) | 52.12 mph (83.89 km/h) |
| 50 mph (80.47 km/h) | 57.92 mph (93.21 km/h) |
| 55 mph (88.51 km/h) | 63.71 mph (102.53 km/h) |
| 60 mph (96.56 km/h) | 69.5 mph (111.85 km/h) |
| 65 mph (104.61 km/h) | 75.29 mph (121.17 km/h) |
| 70 mph (112.65 km/h) | 81.08 mph (130.49 km/h) |
| 75 mph (120.7 km/h) | 86.87 mph (139.81 km/h) |
| 80 mph (128.75 km/h) | 92.67 mph (149.13 km/h) |
| 85 mph (136.79 km/h) | 98.46 mph (158.45 km/h) |
| 90 mph (144.84 km/h) | 104.25 mph (167.77 km/h) |
| 95 mph (152.89 km/h) | 110.04 mph (177.09 km/h) |
| 100 mph (160.93 km/h) | 115.83 mph (186.41 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1212 | 1408 | 1516 | 1583 | 1656 | 1707 | 1764 | 1831 | 1924 | 2017 | 2120 | 2202 | 2352 | 2517 | 2646 | 2729 | 2775 | 2945 | 3182 | 3698 |
Better Fuel Economy Factory Ratios Increased Power
