| Castlebar to Heist-op-den-Berg | 619.10 mi (996.35 km) |
| Castlebar to Hemiksem | 602.68 mi (969.91 km) |
| Castlebar to Herent | 622.20 mi (1,001.33 km) |
| Castlebar to Herentals | 621.03 mi (999.45 km) |
| Castlebar to Herenthout | 619.27 mi (996.62 km) |
| Castlebar to Herk-de-Stad | 641.00 mi (1,031.58 km) |
| Castlebar to Herselt | 626.65 mi (1,008.50 km) |
| Castlebar to Herstal | 667.37 mi (1,074.03 km) |
| Castlebar to Herve | 674.96 mi (1,086.24 km) |
| Castlebar to Herzele | 591.83 mi (952.45 km) |
| Castlebar to Heule | 567.85 mi (913.86 km) |
| Castlebar to Heusden | 584.31 mi (940.35 km) |
| Castlebar to Hoboken | 602.88 mi (970.25 km) |
| Castlebar to Hoeilaart | 618.28 mi (995.02 km) |
| Castlebar to Hoeselt | 656.13 mi (1,055.94 km) |
