| Quartucciu to Oerlinghausen | 878.78 mi (1,414.26 km) |
| Quartucciu to Oestrich-Winkel | 744.78 mi (1,198.60 km) |
| Quartucciu to Offenburg | 639.59 mi (1,029.32 km) |
| Quartucciu to Oftersheim | 699.67 mi (1,126.01 km) |
| Quartucciu to Ohrdruf | 803.32 mi (1,292.82 km) |
| Quartucciu to Ohringen | 687.46 mi (1,106.37 km) |
| Quartucciu to Olbernhau | 814.04 mi (1,310.08 km) |
| Quartucciu to Olching | 627.29 mi (1,009.52 km) |
| Quartucciu to Oldenburg | 960.85 mi (1,546.35 km) |
| Quartucciu to Oldenburg in Holstein | 1,042.71 mi (1,678.08 km) |
| Quartucciu to Olfen | 865.46 mi (1,392.83 km) |
| Quartucciu to Olpe | 815.39 mi (1,312.25 km) |
| Quartucciu to Olsberg | 836.50 mi (1,346.21 km) |
| Quartucciu to Oranienburg | 952.61 mi (1,533.07 km) |
| Quartucciu to Ortenberg | 767.16 mi (1,234.62 km) |
