| Gaithersburg to Friesoythe | 3,940.04 mi (6,340.88 km) |
| Gaithersburg to Fritzlar | 4,048.17 mi (6,514.91 km) |
| Gaithersburg to Frohburg | 4,178.19 mi (6,724.15 km) |
| Gaithersburg to Frondenberg | 3,978.81 mi (6,403.27 km) |
| Gaithersburg to Fulda | 4,080.77 mi (6,567.36 km) |
| Gaithersburg to Fuldabruck | 4,052.14 mi (6,521.30 km) |
| Gaithersburg to Fuldatal | 4,051.42 mi (6,520.13 km) |
| Gaithersburg to Furstenau | 3,946.25 mi (6,350.87 km) |
| Gaithersburg to Furstenfeldbruck | 4,217.62 mi (6,787.61 km) |
| Gaithersburg to Furstenwalde | 4,194.58 mi (6,750.52 km) |
| Gaithersburg to Furth | 4,071.65 mi (6,552.69 km) |
| Gaithersburg to Furth | 4,166.56 mi (6,705.44 km) |
| Gaithersburg to Furth im Wald | 4,245.03 mi (6,831.71 km) |
| Gaithersburg to Furtwangen im Schwarzwald | 4,096.12 mi (6,592.06 km) |
| Gaithersburg to Fussen | 4,214.36 mi (6,782.36 km) |
