| Helensburgh to Celbridge | 198.61 mi (319.64 km) |
| Helensburgh to Clondalkin | 197.76 mi (318.26 km) |
| Helensburgh to Clonmel | 280.19 mi (450.93 km) |
| Helensburgh to Cobh | 322.15 mi (518.45 km) |
| Helensburgh to Cork | 322.51 mi (519.04 km) |
| Helensburgh to Donegal | 162.67 mi (261.80 km) |
| Helensburgh to Douglas | 323.15 mi (520.06 km) |
| Helensburgh to Drogheda | 171.55 mi (276.09 km) |
| Helensburgh to Dublin | 194.06 mi (312.32 km) |
| Helensburgh to Dun Dealgan | 153.70 mi (247.35 km) |
| Helensburgh to Ennis | 277.60 mi (446.75 km) |
| Helensburgh to Enniscorthy | 253.82 mi (408.48 km) |
| Helensburgh to Finglas | 186.32 mi (299.85 km) |
| Helensburgh to Galway | 256.29 mi (412.46 km) |
| Helensburgh to Glanmire | 319.98 mi (514.96 km) |
