| Boulder to Forli | 5,433.56 mi (8,744.47 km) |
| Boulder to Forlimpopoli | 5,438.91 mi (8,753.08 km) |
| Boulder to Formello | 5,553.13 mi (8,936.90 km) |
| Boulder to Formia | 5,637.23 mi (9,072.24 km) |
| Boulder to Formigine | 5,376.58 mi (8,652.77 km) |
| Boulder to Fossano | 5,266.81 mi (8,476.12 km) |
| Boulder to Fossombrone | 5,486.54 mi (8,829.73 km) |
| Boulder to Francavilla al Mare | 5,602.46 mi (9,016.29 km) |
| Boulder to Francavilla Fontana | 5,812.41 mi (9,354.16 km) |
| Boulder to Francofonte | 5,889.31 mi (9,477.92 km) |
| Boulder to Frascati | 5,576.52 mi (8,974.54 km) |
| Boulder to Frattamaggiore | 5,677.65 mi (9,137.30 km) |
| Boulder to Frattaminore | 5,676.22 mi (9,134.99 km) |
| Boulder to Frosinone | 5,609.25 mi (9,027.22 km) |
| Boulder to Fucecchio | 5,414.90 mi (8,714.43 km) |
