| Lake Ronkonkoma to Celbridge | 3,126.07 mi (5,030.92 km) |
| Lake Ronkonkoma to Clondalkin | 3,132.14 mi (5,040.69 km) |
| Lake Ronkonkoma to Clonmel | 3,092.61 mi (4,977.07 km) |
| Lake Ronkonkoma to Cobh | 3,075.78 mi (4,949.99 km) |
| Lake Ronkonkoma to Cork | 3,067.88 mi (4,937.27 km) |
| Lake Ronkonkoma to Donegal | 3,046.18 mi (4,902.35 km) |
| Lake Ronkonkoma to Douglas | 3,069.61 mi (4,940.06 km) |
| Lake Ronkonkoma to Drogheda | 3,128.13 mi (5,034.25 km) |
| Lake Ronkonkoma to Dublin | 3,137.12 mi (5,048.70 km) |
| Lake Ronkonkoma to Dun Dealgan | 3,121.92 mi (5,024.24 km) |
| Lake Ronkonkoma to Ennis | 3,033.58 mi (4,882.08 km) |
| Lake Ronkonkoma to Enniscorthy | 3,137.48 mi (5,049.28 km) |
| Lake Ronkonkoma to Finglas | 3,137.21 mi (5,048.85 km) |
| Lake Ronkonkoma to Galway | 3,025.34 mi (4,868.81 km) |
| Lake Ronkonkoma to Glanmire | 3,070.51 mi (4,941.50 km) |
