| Castel San Giorgio to Forlimpopoli | 268.83 mi (432.65 km) |
| Castel San Giorgio to Formello | 149.20 mi (240.11 km) |
| Castel San Giorgio to Formia | 65.61 mi (105.58 km) |
| Castel San Giorgio to Formigine | 326.10 mi (524.80 km) |
| Castel San Giorgio to Fossano | 439.06 mi (706.60 km) |
| Castel San Giorgio to Fossombrone | 223.35 mi (359.45 km) |
| Castel San Giorgio to Francavilla al Mare | 114.73 mi (184.65 km) |
| Castel San Giorgio to Francavilla Fontana | 152.10 mi (244.79 km) |
| Castel San Giorgio to Francofonte | 245.48 mi (395.06 km) |
| Castel San Giorgio to Frascati | 126.71 mi (203.92 km) |
| Castel San Giorgio to Frattamaggiore | 24.12 mi (38.81 km) |
| Castel San Giorgio to Frattaminore | 25.40 mi (40.88 km) |
| Castel San Giorgio to Frosinone | 91.50 mi (147.26 km) |
| Castel San Giorgio to Fucecchio | 285.10 mi (458.82 km) |
| Castel San Giorgio to Gaeta | 66.25 mi (106.62 km) |
