| Chillum to Oerlinghausen | 3,999.10 mi (6,435.93 km) |
| Chillum to Oestrich-Winkel | 4,028.10 mi (6,482.60 km) |
| Chillum to Offenburg | 4,069.90 mi (6,549.86 km) |
| Chillum to Oftersheim | 4,070.07 mi (6,550.14 km) |
| Chillum to Ohrdruf | 4,112.88 mi (6,619.05 km) |
| Chillum to Ohringen | 4,112.38 mi (6,618.23 km) |
| Chillum to Olbernhau | 4,219.60 mi (6,790.79 km) |
| Chillum to Olching | 4,217.37 mi (6,787.20 km) |
| Chillum to Oldenburg | 3,949.51 mi (6,356.13 km) |
| Chillum to Oldenburg in Holstein | 4,018.15 mi (6,466.60 km) |
| Chillum to Olfen | 3,955.68 mi (6,366.06 km) |
| Chillum to Olpe | 3,992.72 mi (6,425.66 km) |
| Chillum to Olsberg | 4,009.15 mi (6,452.10 km) |
| Chillum to Oranienburg | 4,150.92 mi (6,680.26 km) |
| Chillum to Ortenberg | 4,060.27 mi (6,534.38 km) |
