| Charleroi to Ostend | 87.31 mi (140.51 km) |
| Charleroi to Oud-Heverlee | 31.64 mi (50.92 km) |
| Charleroi to Oud-Turnhout | 67.73 mi (109.00 km) |
| Charleroi to Oudenaarde | 47.97 mi (77.19 km) |
| Charleroi to Oudenburg | 82.75 mi (133.17 km) |
| Charleroi to Oupeye | 57.22 mi (92.09 km) |
| Charleroi to Overijse | 26.84 mi (43.20 km) |
| Charleroi to Overpelt | 70.90 mi (114.11 km) |
| Charleroi to Paal | 54.74 mi (88.10 km) |
| Charleroi to Peer | 67.46 mi (108.57 km) |
| Charleroi to Pepinster | 61.90 mi (99.62 km) |
| Charleroi to Peruwelz | 38.25 mi (61.56 km) |
| Charleroi to Perwez | 22.83 mi (36.73 km) |
| Charleroi to Philippeville | 14.75 mi (23.73 km) |
| Charleroi to Plombieres | 70.43 mi (113.35 km) |
