Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/55-16 | 225/40-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.88 (631.9) | 23.09 (586.4) | -1.79 (-45.5) -7.2% |
| Width inches (mm) | 8.07 (205) | 8.86 (225) | 0.79 (20) 9.8% |
| Circum. inches (mm) | 78.16 (1985.17) | 72.53 (1842.23) | -5.63 (-142.94) -7.2% |
| Sidewall Height inches (mm) | 4.44 (112.75) | 3.54 (90) | -0.9 (-22.75) -20.2% |
| Revolutions per mile (km) | 810.68 (503.73) | 873.58 (542.82) | 62.9 (39.09) 7.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.56 mph (29.87 km/h) |
| 25 mph (40.23 km/h) | 23.2 mph (37.34 km/h) |
| 30 mph (48.28 km/h) | 27.84 mph (44.8 km/h) |
| 35 mph (56.33 km/h) | 32.48 mph (52.27 km/h) |
| 40 mph (64.37 km/h) | 37.12 mph (59.74 km/h) |
| 45 mph (72.42 km/h) | 41.76 mph (67.21 km/h) |
| 50 mph (80.47 km/h) | 46.4 mph (74.67 km/h) |
| 55 mph (88.51 km/h) | 51.04 mph (82.14 km/h) |
| 60 mph (96.56 km/h) | 55.68 mph (89.61 km/h) |
| 65 mph (104.61 km/h) | 60.32 mph (97.08 km/h) |
| 70 mph (112.65 km/h) | 64.96 mph (104.54 km/h) |
| 75 mph (120.7 km/h) | 69.6 mph (112.01 km/h) |
| 80 mph (128.75 km/h) | 74.24 mph (119.48 km/h) |
| 85 mph (136.79 km/h) | 78.88 mph (126.94 km/h) |
| 90 mph (144.84 km/h) | 83.52 mph (134.41 km/h) |
| 95 mph (152.89 km/h) | 88.16 mph (141.88 km/h) |
| 100 mph (160.93 km/h) | 92.8 mph (149.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2223 | 2583 | 2781 | 2904 | 3037 | 3131 | 3235 | 3358 | 3529 | 3699 | 3888 | 4039 | 4314 | 4616 | 4853 | 5004 | 5089 | 5402 | 5837 | 6783 |
Better Fuel Economy Factory Ratios Increased Power
