| Rockville to Frederick (Colorado) | 1,476.52 mi (2,376.24 km) |
| Rockville to Frederick (Maryland) | 27.88 mi (44.87 km) |
| Rockville to Fredericksburg (Texas) | 1,371.50 mi (2,207.22 km) |
| Rockville to Fredericksburg (Virginia) | 57.06 mi (91.83 km) |
| Rockville to Frederickson (Washington) | 2,312.94 mi (3,722.32 km) |
| Rockville to Freeport (Illinois) | 689.54 mi (1,109.71 km) |
| Rockville to Freeport (New York) | 218.12 mi (351.03 km) |
| Rockville to Freeport (Texas) | 1,252.24 mi (2,015.28 km) |
| Rockville to Fremont (California) | 2,408.11 mi (3,875.47 km) |
| Rockville to Fremont (Nebraska) | 1,029.97 mi (1,657.58 km) |
| Rockville to Fremont (Ohio) | 351.25 mi (565.29 km) |
| Rockville to French Valley (California) | 2,237.25 mi (3,600.51 km) |
| Rockville to Fresno (California) | 2,307.74 mi (3,713.94 km) |
| Rockville to Fresno (Texas) | 1,232.32 mi (1,983.23 km) |
| Rockville to Fridley (Minnesota) | 921.78 mi (1,483.46 km) |
