Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/90-18 | 295/90-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.4 (772.2) | 43.41 (1102.5) | 13 (330.3) 42.8% |
| Width inches (mm) | 6.89 (175) | 11.61 (295) | 4.72 (120) 68.6% |
| Circum. inches (mm) | 95.51 (2425.94) | 136.36 (3463.61) | 40.85 (1037.67) 42.8% |
| Sidewall Height inches (mm) | 6.2 (157.5) | 10.45 (265.5) | 4.25 (108) 68.6% |
| Revolutions per mile (km) | 663.39 (412.21) | 464.64 (288.72) | -198.75 (-123.5) -30% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.55 mph (45.95 km/h) |
| 25 mph (40.23 km/h) | 35.69 mph (57.44 km/h) |
| 30 mph (48.28 km/h) | 42.83 mph (68.93 km/h) |
| 35 mph (56.33 km/h) | 49.97 mph (80.42 km/h) |
| 40 mph (64.37 km/h) | 57.11 mph (91.91 km/h) |
| 45 mph (72.42 km/h) | 64.25 mph (103.4 km/h) |
| 50 mph (80.47 km/h) | 71.39 mph (114.89 km/h) |
| 55 mph (88.51 km/h) | 78.53 mph (126.38 km/h) |
| 60 mph (96.56 km/h) | 85.66 mph (137.86 km/h) |
| 65 mph (104.61 km/h) | 92.8 mph (149.35 km/h) |
| 70 mph (112.65 km/h) | 99.94 mph (160.84 km/h) |
| 75 mph (120.7 km/h) | 107.08 mph (172.33 km/h) |
| 80 mph (128.75 km/h) | 114.22 mph (183.82 km/h) |
| 85 mph (136.79 km/h) | 121.36 mph (195.31 km/h) |
| 90 mph (144.84 km/h) | 128.5 mph (206.8 km/h) |
| 95 mph (152.89 km/h) | 135.64 mph (218.28 km/h) |
| 100 mph (160.93 km/h) | 142.77 mph (229.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1182 | 1374 | 1479 | 1545 | 1615 | 1665 | 1721 | 1786 | 1877 | 1967 | 2068 | 2149 | 2294 | 2455 | 2581 | 2662 | 2707 | 2873 | 3105 | 3608 |
Better Fuel Economy Factory Ratios Increased Power
