| Drogheda to Cologno al Serio | 908.26 mi (1,461.71 km) |
| Drogheda to Cologno Monzese | 896.32 mi (1,442.48 km) |
| Drogheda to Colorno | 963.44 mi (1,550.51 km) |
| Drogheda to Comacchio | 1,037.92 mi (1,670.38 km) |
| Drogheda to Comiso | 1,530.17 mi (2,462.57 km) |
| Drogheda to Como | 876.06 mi (1,409.89 km) |
| Drogheda to Concordia Sagittaria | 1,013.23 mi (1,630.63 km) |
| Drogheda to Concorezzo | 895.34 mi (1,440.91 km) |
| Drogheda to Conegliano | 987.48 mi (1,589.20 km) |
| Drogheda to Conselice | 1,034.30 mi (1,664.55 km) |
| Drogheda to Conselve | 1,001.50 mi (1,611.76 km) |
| Drogheda to Conversano | 1,396.96 mi (2,248.19 km) |
| Drogheda to Copertino | 1,465.70 mi (2,358.82 km) |
| Drogheda to Copparo | 1,015.96 mi (1,635.03 km) |
| Drogheda to Corato | 1,362.28 mi (2,192.37 km) |
