Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/45-15 | 245/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.26 (565.5) | 23.68 (601.5) | 1.42 (36) 6.4% |
| Width inches (mm) | 8.07 (205) | 9.65 (245) | 1.57 (40) 19.5% |
| Circum. inches (mm) | 69.94 (1776.57) | 74.4 (1889.67) | 4.45 (113.1) 6.4% |
| Sidewall Height inches (mm) | 3.63 (92.25) | 4.34 (110.25) | 0.71 (18) 19.5% |
| Revolutions per mile (km) | 905.87 (562.88) | 851.65 (529.19) | -54.22 (-33.69) -6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.27 mph (34.24 km/h) |
| 25 mph (40.23 km/h) | 26.59 mph (42.79 km/h) |
| 30 mph (48.28 km/h) | 31.91 mph (51.35 km/h) |
| 35 mph (56.33 km/h) | 37.23 mph (59.91 km/h) |
| 40 mph (64.37 km/h) | 42.55 mph (68.47 km/h) |
| 45 mph (72.42 km/h) | 47.86 mph (77.03 km/h) |
| 50 mph (80.47 km/h) | 53.18 mph (85.59 km/h) |
| 55 mph (88.51 km/h) | 58.5 mph (94.15 km/h) |
| 60 mph (96.56 km/h) | 63.82 mph (102.71 km/h) |
| 65 mph (104.61 km/h) | 69.14 mph (111.27 km/h) |
| 70 mph (112.65 km/h) | 74.46 mph (119.83 km/h) |
| 75 mph (120.7 km/h) | 79.77 mph (128.38 km/h) |
| 80 mph (128.75 km/h) | 85.09 mph (136.94 km/h) |
| 85 mph (136.79 km/h) | 90.41 mph (145.5 km/h) |
| 90 mph (144.84 km/h) | 95.73 mph (154.06 km/h) |
| 95 mph (152.89 km/h) | 101.05 mph (162.62 km/h) |
| 100 mph (160.93 km/h) | 106.37 mph (171.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2167 | 2518 | 2711 | 2831 | 2960 | 3053 | 3154 | 3274 | 3440 | 3606 | 3790 | 3938 | 4205 | 4501 | 4731 | 4879 | 4962 | 5266 | 5690 | 6613 |
Better Fuel Economy Factory Ratios Increased Power
