| Boulder to Floha | 5,138.48 mi (8,269.58 km) |
| Boulder to Florsheim | 5,032.47 mi (8,098.97 km) |
| Boulder to Florstadt | 5,032.34 mi (8,098.77 km) |
| Boulder to Forchheim | 5,131.21 mi (8,257.89 km) |
| Boulder to Foritz | 5,106.50 mi (8,218.12 km) |
| Boulder to Forst (Lausitz) | 5,141.74 mi (8,274.83 km) |
| Boulder to Frankenberg | 5,134.74 mi (8,263.56 km) |
| Boulder to Frankenberg | 4,995.28 mi (8,039.12 km) |
| Boulder to Frankenthal | 5,052.44 mi (8,131.11 km) |
| Boulder to Frankfurt | 5,036.15 mi (8,104.90 km) |
| Boulder to Frankfurt (Oder) | 5,108.93 mi (8,222.02 km) |
| Boulder to Frechen | 4,938.03 mi (7,946.99 km) |
| Boulder to Freiberg | 5,143.97 mi (8,278.43 km) |
| Boulder to Freiberg am Neckar | 5,108.77 mi (8,221.77 km) |
| Boulder to Freiburg im Breisgau | 5,108.03 mi (8,220.58 km) |
