| Chios to Oerlinghausen | 1,260.91 mi (2,029.24 km) |
| Chios to Oestrich-Winkel | 1,199.59 mi (1,930.56 km) |
| Chios to Offenburg | 1,144.45 mi (1,841.81 km) |
| Chios to Oftersheim | 1,153.29 mi (1,856.03 km) |
| Chios to Ohrdruf | 1,142.09 mi (1,838.02 km) |
| Chios to Ohringen | 1,112.80 mi (1,790.89 km) |
| Chios to Olbernhau | 1,054.83 mi (1,697.59 km) |
| Chios to Olching | 1,005.12 mi (1,617.58 km) |
| Chios to Oldenburg | 1,329.57 mi (2,139.73 km) |
| Chios to Oldenburg in Holstein | 1,313.10 mi (2,113.24 km) |
| Chios to Olfen | 1,292.02 mi (2,079.30 km) |
| Chios to Olpe | 1,247.05 mi (2,006.93 km) |
| Chios to Olsberg | 1,239.30 mi (1,994.46 km) |
| Chios to Oranienburg | 1,169.43 mi (1,882.01 km) |
| Chios to Ortenberg | 1,176.80 mi (1,893.87 km) |
