| Formia to Giugliano in Campania | 37.99 mi (61.15 km) |
| Formia to Giulianova | 103.90 mi (167.22 km) |
| Formia to Giussano | 377.34 mi (607.26 km) |
| Formia to Goito | 312.64 mi (503.15 km) |
| Formia to Gonzaga | 291.01 mi (468.34 km) |
| Formia to Gorgonzola | 362.81 mi (583.88 km) |
| Formia to Gorizia | 322.43 mi (518.90 km) |
| Formia to Gragnano | 61.27 mi (98.60 km) |
| Formia to Grammichele | 285.23 mi (459.03 km) |
| Formia to Granarolo del l'Emilia | 251.94 mi (405.46 km) |
| Formia to Gravina in Puglia | 149.18 mi (240.09 km) |
| Formia to Grezzana | 321.31 mi (517.10 km) |
| Formia to Gricignano d'Aversa | 34.77 mi (55.96 km) |
| Formia to Grosseto | 165.61 mi (266.52 km) |
| Formia to Grottaferrata | 60.73 mi (97.73 km) |
