| Cities | Distance |
|---|---|
| Formia to Novi di Modena | 285.57 mi (459.58 km) |
| Formia to Novi Ligure | 343.10 mi (552.17 km) |
| Formia to Nuoro | 233.45 mi (375.70 km) |
| Formia to Occhiobello | 272.59 mi (438.69 km) |
| Formia to Oderzo | 316.93 mi (510.04 km) |
| Formia to Oggiono | 378.12 mi (608.53 km) |
| Formia to Olbia | 215.71 mi (347.15 km) |
| Formia to Oleggio | 389.91 mi (627.50 km) |
| Formia to Olgiate Comasco | 389.28 mi (626.48 km) |
| Formia to Olgiate Olona | 383.77 mi (617.62 km) |
| Formia to Omegna | 411.55 mi (662.32 km) |
| Formia to Opera | 360.17 mi (579.64 km) |
| Formia to Oppeano | 304.33 mi (489.77 km) |
| Formia to Orbassano | 400.75 mi (644.94 km) |
| Formia to Orbetello | 147.89 mi (238.01 km) |