| Mercogliano to Novi di Modena | 336.14 mi (540.97 km) |
| Mercogliano to Novi Ligure | 401.47 mi (646.10 km) |
| Mercogliano to Nuoro | 286.73 mi (461.45 km) |
| Mercogliano to Occhiobello | 319.17 mi (513.66 km) |
| Mercogliano to Oderzo | 354.12 mi (569.90 km) |
| Mercogliano to Oggiono | 431.26 mi (694.05 km) |
| Mercogliano to Olbia | 273.68 mi (440.44 km) |
| Mercogliano to Oleggio | 445.74 mi (717.35 km) |
| Mercogliano to Olgiate Comasco | 443.58 mi (713.87 km) |
| Mercogliano to Olgiate Olona | 438.83 mi (706.23 km) |
| Mercogliano to Omegna | 467.01 mi (751.57 km) |
| Mercogliano to Opera | 415.19 mi (668.19 km) |
| Mercogliano to Oppeano | 351.61 mi (565.86 km) |
| Mercogliano to Orbassano | 460.53 mi (741.15 km) |
| Mercogliano to Orbetello | 210.12 mi (338.16 km) |
