| Koekelberg to Oestrich-Winkel | 172.10 mi (276.97 km) |
| Koekelberg to Offenburg | 231.06 mi (371.86 km) |
| Koekelberg to Oftersheim | 214.80 mi (345.69 km) |
| Koekelberg to Ohrdruf | 279.10 mi (449.17 km) |
| Koekelberg to Ohringen | 256.52 mi (412.83 km) |
| Koekelberg to Olbernhau | 393.30 mi (632.95 km) |
| Koekelberg to Olching | 363.11 mi (584.37 km) |
| Koekelberg to Oldenburg | 227.97 mi (366.88 km) |
| Koekelberg to Oldenburg in Holstein | 362.90 mi (584.03 km) |
| Koekelberg to Olfen | 144.26 mi (232.17 km) |
| Koekelberg to Olpe | 152.72 mi (245.77 km) |
| Koekelberg to Olsberg | 183.07 mi (294.63 km) |
| Koekelberg to Oranienburg | 401.77 mi (646.58 km) |
| Koekelberg to Ortenberg | 209.99 mi (337.94 km) |
| Koekelberg to Oschatz | 381.76 mi (614.39 km) |
