Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/45-15 | 205/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.26 (565.5) | 21.46 (545) | -0.81 (-20.5) -3.6% |
| Width inches (mm) | 8.07 (205) | 8.07 (205) | 0 (0) 0% |
| Circum. inches (mm) | 69.94 (1776.57) | 67.41 (1712.17) | -2.54 (-64.4) -3.6% |
| Sidewall Height inches (mm) | 3.63 (92.25) | 3.23 (82) | -0.4 (-10.25) -11.1% |
| Revolutions per mile (km) | 905.87 (562.88) | 939.95 (584.05) | 34.07 (21.17) 3.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.27 mph (31.02 km/h) |
| 25 mph (40.23 km/h) | 24.09 mph (38.78 km/h) |
| 30 mph (48.28 km/h) | 28.91 mph (46.53 km/h) |
| 35 mph (56.33 km/h) | 33.73 mph (54.29 km/h) |
| 40 mph (64.37 km/h) | 38.55 mph (62.04 km/h) |
| 45 mph (72.42 km/h) | 43.37 mph (69.8 km/h) |
| 50 mph (80.47 km/h) | 48.19 mph (77.55 km/h) |
| 55 mph (88.51 km/h) | 53.01 mph (85.31 km/h) |
| 60 mph (96.56 km/h) | 57.82 mph (93.06 km/h) |
| 65 mph (104.61 km/h) | 62.64 mph (100.82 km/h) |
| 70 mph (112.65 km/h) | 67.46 mph (108.57 km/h) |
| 75 mph (120.7 km/h) | 72.28 mph (116.33 km/h) |
| 80 mph (128.75 km/h) | 77.1 mph (124.08 km/h) |
| 85 mph (136.79 km/h) | 81.92 mph (131.84 km/h) |
| 90 mph (144.84 km/h) | 86.74 mph (139.59 km/h) |
| 95 mph (152.89 km/h) | 91.56 mph (147.35 km/h) |
| 100 mph (160.93 km/h) | 96.37 mph (155.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
