| Formello to Novi di Modena | 208.18 mi (335.04 km) |
| Formello to Novi Ligure | 258.95 mi (416.74 km) |
| Formello to Nuoro | 200.77 mi (323.10 km) |
| Formello to Occhiobello | 200.35 mi (322.43 km) |
| Formello to Oderzo | 255.51 mi (411.21 km) |
| Formello to Oggiono | 297.24 mi (478.36 km) |
| Formello to Olbia | 170.33 mi (274.12 km) |
| Formello to Oleggio | 306.96 mi (494.01 km) |
| Formello to Olgiate Comasco | 307.40 mi (494.71 km) |
| Formello to Olgiate Olona | 301.36 mi (484.99 km) |
| Formello to Omegna | 328.78 mi (529.12 km) |
| Formello to Opera | 277.88 mi (447.20 km) |
| Formello to Oppeano | 230.41 mi (370.80 km) |
| Formello to Orbassano | 316.33 mi (509.09 km) |
| Formello to Orbetello | 65.52 mi (105.44 km) |
