Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-15 | 245/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.97 (583.5) | 23.68 (601.5) | 0.71 (18) 3.1% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 72.17 (1833.12) | 74.4 (1889.67) | 2.23 (56.55) 3.1% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 4.34 (110.25) | 0.35 (9) 8.9% |
| Revolutions per mile (km) | 877.93 (545.52) | 851.65 (529.19) | -26.27 (-16.32) -3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.62 mph (33.18 km/h) |
| 25 mph (40.23 km/h) | 25.77 mph (41.47 km/h) |
| 30 mph (48.28 km/h) | 30.93 mph (49.77 km/h) |
| 35 mph (56.33 km/h) | 36.08 mph (58.06 km/h) |
| 40 mph (64.37 km/h) | 41.23 mph (66.36 km/h) |
| 45 mph (72.42 km/h) | 46.39 mph (74.65 km/h) |
| 50 mph (80.47 km/h) | 51.54 mph (82.95 km/h) |
| 55 mph (88.51 km/h) | 56.7 mph (91.24 km/h) |
| 60 mph (96.56 km/h) | 61.85 mph (99.54 km/h) |
| 65 mph (104.61 km/h) | 67.01 mph (107.83 km/h) |
| 70 mph (112.65 km/h) | 72.16 mph (116.13 km/h) |
| 75 mph (120.7 km/h) | 77.31 mph (124.42 km/h) |
| 80 mph (128.75 km/h) | 82.47 mph (132.72 km/h) |
| 85 mph (136.79 km/h) | 87.62 mph (141.01 km/h) |
| 90 mph (144.84 km/h) | 92.78 mph (149.31 km/h) |
| 95 mph (152.89 km/h) | 97.93 mph (157.6 km/h) |
| 100 mph (160.93 km/h) | 103.08 mph (165.9 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
