| Rockville Centre to Celbridge | 3,154.54 mi (5,076.75 km) |
| Rockville Centre to Clondalkin | 3,160.61 mi (5,086.51 km) |
| Rockville Centre to Clonmel | 3,121.31 mi (5,023.26 km) |
| Rockville Centre to Cobh | 3,104.59 mi (4,996.36 km) |
| Rockville Centre to Cork | 3,096.69 mi (4,983.64 km) |
| Rockville Centre to Donegal | 3,074.40 mi (4,947.77 km) |
| Rockville Centre to Douglas | 3,098.42 mi (4,986.43 km) |
| Rockville Centre to Drogheda | 3,156.53 mi (5,079.94 km) |
| Rockville Centre to Dublin | 3,165.58 mi (5,094.52 km) |
| Rockville Centre to Dun Dealgan | 3,150.25 mi (5,069.83 km) |
| Rockville Centre to Ennis | 3,062.22 mi (4,928.17 km) |
| Rockville Centre to Enniscorthy | 3,166.12 mi (5,095.38 km) |
| Rockville Centre to Finglas | 3,165.65 mi (5,094.62 km) |
| Rockville Centre to Galway | 3,053.89 mi (4,914.76 km) |
| Rockville Centre to Glanmire | 3,099.31 mi (4,987.86 km) |
