Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-18 | 205/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.09 (637.2) | 24.88 (631.9) | -0.21 (-5.3) -0.8% |
| Width inches (mm) | 8.86 (225) | 8.07 (205) | -0.79 (-20) -8.9% |
| Circum. inches (mm) | 78.81 (2001.82) | 78.16 (1985.17) | -0.66 (-16.65) -0.8% |
| Sidewall Height inches (mm) | 3.54 (90) | 4.44 (112.75) | 0.9 (22.75) 25.3% |
| Revolutions per mile (km) | 803.94 (499.54) | 810.68 (503.73) | 6.74 (4.19) 0.8% |
205/55-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.83 mph (31.92 km/h) |
| 25 mph (40.23 km/h) | 24.79 mph (39.9 km/h) |
| 30 mph (48.28 km/h) | 29.75 mph (47.88 km/h) |
| 35 mph (56.33 km/h) | 34.71 mph (55.86 km/h) |
| 40 mph (64.37 km/h) | 39.67 mph (63.84 km/h) |
| 45 mph (72.42 km/h) | 44.63 mph (71.82 km/h) |
| 50 mph (80.47 km/h) | 49.58 mph (79.8 km/h) |
| 55 mph (88.51 km/h) | 54.54 mph (87.78 km/h) |
| 60 mph (96.56 km/h) | 59.5 mph (95.76 km/h) |
| 65 mph (104.61 km/h) | 64.46 mph (103.74 km/h) |
| 70 mph (112.65 km/h) | 69.42 mph (111.72 km/h) |
| 75 mph (120.7 km/h) | 74.38 mph (119.7 km/h) |
| 80 mph (128.75 km/h) | 79.33 mph (127.68 km/h) |
| 85 mph (136.79 km/h) | 84.29 mph (135.66 km/h) |
| 90 mph (144.84 km/h) | 89.25 mph (143.64 km/h) |
| 95 mph (152.89 km/h) | 94.21 mph (151.62 km/h) |
| 100 mph (160.93 km/h) | 99.17 mph (159.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2063 | 2397 | 2581 | 2695 | 2818 | 2906 | 3002 | 3116 | 3275 | 3433 | 3608 | 3749 | 4003 | 4284 | 4504 | 4644 | 4723 | 5013 | 5417 | 6294 |
Better Fuel Economy Factory Ratios Increased Power
