| Gahanna to Celbridge | 3,550.83 mi (5,714.50 km) |
| Gahanna to Clondalkin | 3,556.86 mi (5,724.21 km) |
| Gahanna to Clonmel | 3,525.00 mi (5,672.93 km) |
| Gahanna to Cobh | 3,511.97 mi (5,651.97 km) |
| Gahanna to Cork | 3,503.95 mi (5,639.07 km) |
| Gahanna to Donegal | 3,463.51 mi (5,573.98 km) |
| Gahanna to Douglas | 3,505.78 mi (5,642.01 km) |
| Gahanna to Drogheda | 3,550.19 mi (5,713.48 km) |
| Gahanna to Dublin | 3,561.50 mi (5,731.69 km) |
| Gahanna to Dun Dealgan | 3,542.05 mi (5,700.37 km) |
| Gahanna to Ennis | 3,464.06 mi (5,574.87 km) |
| Gahanna to Enniscorthy | 3,567.70 mi (5,741.65 km) |
| Gahanna to Finglas | 3,560.82 mi (5,730.59 km) |
| Gahanna to Galway | 3,453.05 mi (5,557.15 km) |
| Gahanna to Glanmire | 3,506.39 mi (5,642.99 km) |
