| Enfield Lock to Opwijk | 188.10 mi (302.72 km) |
| Enfield Lock to Ostend | 130.46 mi (209.96 km) |
| Enfield Lock to Oud-Heverlee | 210.95 mi (339.48 km) |
| Enfield Lock to Oud-Turnhout | 216.82 mi (348.93 km) |
| Enfield Lock to Oudenaarde | 166.65 mi (268.20 km) |
| Enfield Lock to Oudenburg | 134.60 mi (216.61 km) |
| Enfield Lock to Oupeye | 254.23 mi (409.15 km) |
| Enfield Lock to Overijse | 206.50 mi (332.34 km) |
| Enfield Lock to Overpelt | 236.41 mi (380.46 km) |
| Enfield Lock to Paal | 228.45 mi (367.65 km) |
| Enfield Lock to Peer | 239.02 mi (384.67 km) |
| Enfield Lock to Pepinster | 264.51 mi (425.69 km) |
| Enfield Lock to Peruwelz | 175.66 mi (282.70 km) |
| Enfield Lock to Perwez | 221.84 mi (357.02 km) |
| Enfield Lock to Philippeville | 223.55 mi (359.77 km) |
