| Rockford to Friendly (Maryland) | 679.29 mi (1,093.21 km) |
| Rockford to Friendswood (Texas) | 944.72 mi (1,520.38 km) |
| Rockford to Frisco (Texas) | 757.82 mi (1,219.60 km) |
| Rockford to Front Royal (Virginia) | 614.98 mi (989.72 km) |
| Rockford to Fruit Cove (Florida) | 936.41 mi (1,507.01 km) |
| Rockford to Fruita (Colorado) | 1,049.64 mi (1,689.24 km) |
| Rockford to Fruitville (Florida) | 1,096.36 mi (1,764.42 km) |
| Rockford to Fuller Heights (Florida) | 1,067.10 mi (1,717.33 km) |
| Rockford to Fullerton (California) | 1,663.48 mi (2,677.12 km) |
| Rockford to Fullerton (Pennsylvania) | 711.51 mi (1,145.07 km) |
| Rockford to Fulshear (Texas) | 947.41 mi (1,524.71 km) |
| Rockford to Fulton (Missouri) | 279.78 mi (450.26 km) |
| Rockford to Fulton (New York) | 644.80 mi (1,037.71 km) |
| Rockford to Fuquay-Varina (North Carolina) | 718.58 mi (1,156.45 km) |
| Rockford to Gadsden (Alabama) | 593.56 mi (955.24 km) |
