| Boulogne-sur-Mer to Chaudfontaine | 176.29 mi (283.71 km) |
| Boulogne-sur-Mer to Chaumont-Gistoux | 134.80 mi (216.93 km) |
| Boulogne-sur-Mer to Chimay | 127.87 mi (205.78 km) |
| Boulogne-sur-Mer to Ciney | 155.92 mi (250.94 km) |
| Boulogne-sur-Mer to Colfontaine | 100.63 mi (161.95 km) |
| Boulogne-sur-Mer to Courcelles | 122.51 mi (197.16 km) |
| Boulogne-sur-Mer to Court-Saint-Etienne | 129.39 mi (208.24 km) |
| Boulogne-sur-Mer to Couvin | 134.72 mi (216.82 km) |
| Boulogne-sur-Mer to Damme | 81.09 mi (130.50 km) |
| Boulogne-sur-Mer to De Haan | 72.34 mi (116.42 km) |
| Boulogne-sur-Mer to De Panne | 49.84 mi (80.22 km) |
| Boulogne-sur-Mer to De Pinte | 90.75 mi (146.04 km) |
| Boulogne-sur-Mer to Deerlijk | 76.44 mi (123.02 km) |
| Boulogne-sur-Mer to Deinze | 85.54 mi (137.67 km) |
| Boulogne-sur-Mer to Denderleeuw | 108.33 mi (174.34 km) |
