| Castlebar to Geraardsbergen | 594.68 mi (957.05 km) |
| Castlebar to Gerpinnes | 634.05 mi (1,020.41 km) |
| Castlebar to Gistel | 547.77 mi (881.56 km) |
| Castlebar to Gooik | 603.50 mi (971.23 km) |
| Castlebar to Grez-Doiceau | 628.47 mi (1,011.43 km) |
| Castlebar to Grimbergen | 610.10 mi (981.86 km) |
| Castlebar to Grobbendonk | 615.93 mi (991.24 km) |
| Castlebar to Haacht | 618.92 mi (996.05 km) |
| Castlebar to Haaltert | 595.93 mi (959.06 km) |
| Castlebar to Halen | 638.69 mi (1,027.87 km) |
| Castlebar to Halle | 610.16 mi (981.96 km) |
| Castlebar to Hamme | 595.92 mi (959.05 km) |
| Castlebar to Hannut | 645.59 mi (1,038.98 km) |
| Castlebar to Harelbeke | 570.25 mi (917.73 km) |
| Castlebar to Hasselt | 648.10 mi (1,043.01 km) |
