| Colfontaine to Ostend | 69.76 mi (112.26 km) |
| Colfontaine to Oud-Heverlee | 46.37 mi (74.63 km) |
| Colfontaine to Oud-Turnhout | 79.99 mi (128.73 km) |
| Colfontaine to Oudenaarde | 32.62 mi (52.49 km) |
| Colfontaine to Oudenburg | 65.34 mi (105.15 km) |
| Colfontaine to Oupeye | 81.38 mi (130.96 km) |
| Colfontaine to Overijse | 39.69 mi (63.87 km) |
| Colfontaine to Overpelt | 88.37 mi (142.22 km) |
| Colfontaine to Paal | 72.50 mi (116.68 km) |
| Colfontaine to Peer | 86.17 mi (138.67 km) |
| Colfontaine to Pepinster | 87.11 mi (140.19 km) |
| Colfontaine to Peruwelz | 14.07 mi (22.64 km) |
| Colfontaine to Perwez | 44.94 mi (72.33 km) |
| Colfontaine to Philippeville | 33.95 mi (54.63 km) |
| Colfontaine to Plombieres | 94.83 mi (152.62 km) |
