| Cities | Distance |
|---|---|
| Formia to Oria | 216.38 mi (348.23 km) |
| Formia to Oristano | 279.89 mi (450.43 km) |
| Formia to Orta Nova | 108.82 mi (175.13 km) |
| Formia to Orte | 103.97 mi (167.33 km) |
| Formia to Ortona | 85.03 mi (136.84 km) |
| Formia to Orvieto | 126.66 mi (203.84 km) |
| Formia to Orzinuovi | 340.24 mi (547.57 km) |
| Formia to Osimo | 153.30 mi (246.72 km) |
| Formia to Ospitaletto | 345.50 mi (556.04 km) |
| Formia to Ostuni | 210.08 mi (338.09 km) |
| Formia to Ottaviano | 53.29 mi (85.77 km) |
| Formia to Ovada | 342.62 mi (551.40 km) |
| Formia to Ozieri | 245.37 mi (394.88 km) |
| Formia to Paceco | 233.85 mi (376.34 km) |
| Formia to Pachino | 324.29 mi (521.90 km) |