| Balchik to Opwijk | 1,233.06 mi (1,984.42 km) |
| Balchik to Ostend | 1,290.68 mi (2,077.14 km) |
| Balchik to Oud-Heverlee | 1,210.28 mi (1,947.77 km) |
| Balchik to Oud-Turnhout | 1,206.78 mi (1,942.13 km) |
| Balchik to Oudenaarde | 1,255.50 mi (2,020.53 km) |
| Balchik to Oudenburg | 1,286.55 mi (2,070.51 km) |
| Balchik to Oupeye | 1,166.91 mi (1,877.96 km) |
| Balchik to Overijse | 1,214.96 mi (1,955.29 km) |
| Balchik to Overpelt | 1,186.83 mi (1,910.02 km) |
| Balchik to Paal | 1,193.20 mi (1,920.27 km) |
| Balchik to Peer | 1,183.52 mi (1,904.69 km) |
| Balchik to Pepinster | 1,156.82 mi (1,861.72 km) |
| Balchik to Peruwelz | 1,250.63 mi (2,012.69 km) |
| Balchik to Perwez | 1,200.14 mi (1,931.45 km) |
| Balchik to Philippeville | 1,204.06 mi (1,937.75 km) |
