| Castlebar to Chaudfontaine | 669.83 mi (1,077.99 km) |
| Castlebar to Chaumont-Gistoux | 629.74 mi (1,013.48 km) |
| Castlebar to Chimay | 635.40 mi (1,022.57 km) |
| Castlebar to Ciney | 657.57 mi (1,058.25 km) |
| Castlebar to Colfontaine | 605.50 mi (974.45 km) |
| Castlebar to Courcelles | 624.22 mi (1,004.58 km) |
| Castlebar to Court-Saint-Etienne | 626.24 mi (1,007.83 km) |
| Castlebar to Couvin | 641.82 mi (1,032.92 km) |
| Castlebar to Damme | 557.59 mi (897.35 km) |
| Castlebar to De Haan | 547.07 mi (880.42 km) |
| Castlebar to De Panne | 534.62 mi (860.39 km) |
| Castlebar to De Pinte | 579.20 mi (932.14 km) |
| Castlebar to Deerlijk | 571.93 mi (920.43 km) |
| Castlebar to Deinze | 575.10 mi (925.53 km) |
| Castlebar to Denderleeuw | 599.71 mi (965.13 km) |
