| Popovo to Opwijk | 1,155.81 mi (1,860.10 km) |
| Popovo to Ostend | 1,213.50 mi (1,952.94 km) |
| Popovo to Oud-Heverlee | 1,132.91 mi (1,823.24 km) |
| Popovo to Oud-Turnhout | 1,131.27 mi (1,820.60 km) |
| Popovo to Oudenaarde | 1,177.52 mi (1,895.04 km) |
| Popovo to Oudenburg | 1,209.29 mi (1,946.16 km) |
| Popovo to Oupeye | 1,089.78 mi (1,753.84 km) |
| Popovo to Overijse | 1,137.33 mi (1,830.35 km) |
| Popovo to Overpelt | 1,111.30 mi (1,788.46 km) |
| Popovo to Paal | 1,116.87 mi (1,797.43 km) |
| Popovo to Peer | 1,107.73 mi (1,782.72 km) |
| Popovo to Pepinster | 1,079.32 mi (1,737.00 km) |
| Popovo to Peruwelz | 1,171.58 mi (1,885.48 km) |
| Popovo to Perwez | 1,122.16 mi (1,805.95 km) |
| Popovo to Philippeville | 1,124.53 mi (1,809.75 km) |
