| Marousi to Oerlinghausen | 1,207.76 mi (1,943.71 km) |
| Marousi to Oestrich-Winkel | 1,134.67 mi (1,826.07 km) |
| Marousi to Offenburg | 1,071.02 mi (1,723.64 km) |
| Marousi to Oftersheim | 1,086.55 mi (1,748.63 km) |
| Marousi to Ohrdruf | 1,089.70 mi (1,753.70 km) |
| Marousi to Ohringen | 1,047.73 mi (1,686.15 km) |
| Marousi to Olbernhau | 1,011.29 mi (1,627.51 km) |
| Marousi to Olching | 940.00 mi (1,512.79 km) |
| Marousi to Oldenburg | 1,280.62 mi (2,060.96 km) |
| Marousi to Oldenburg in Holstein | 1,277.00 mi (2,055.13 km) |
| Marousi to Olfen | 1,234.16 mi (1,986.19 km) |
| Marousi to Olpe | 1,186.92 mi (1,910.16 km) |
| Marousi to Olsberg | 1,182.62 mi (1,903.24 km) |
| Marousi to Oranienburg | 1,135.13 mi (1,826.81 km) |
| Marousi to Ortenberg | 1,116.68 mi (1,797.12 km) |
