| Mettlach to Novi di Modena | 376.38 mi (605.73 km) |
| Mettlach to Novi Ligure | 342.75 mi (551.60 km) |
| Mettlach to Nuoro | 647.80 mi (1,042.53 km) |
| Mettlach to Occhiobello | 392.79 mi (632.14 km) |
| Mettlach to Oderzo | 375.40 mi (604.15 km) |
| Mettlach to Oggiono | 286.44 mi (460.98 km) |
| Mettlach to Olbia | 608.97 mi (980.04 km) |
| Mettlach to Oleggio | 285.14 mi (458.88 km) |
| Mettlach to Olgiate Comasco | 278.93 mi (448.89 km) |
| Mettlach to Olgiate Olona | 287.07 mi (462.00 km) |
| Mettlach to Omegna | 263.46 mi (424.00 km) |
| Mettlach to Opera | 309.09 mi (497.43 km) |
| Mettlach to Oppeano | 360.25 mi (579.77 km) |
| Mettlach to Orbassano | 312.95 mi (503.65 km) |
| Mettlach to Orbetello | 535.06 mi (861.09 km) |
