| Drogheda to Civita Castellana | 1,165.90 mi (1,876.33 km) |
| Drogheda to Civitanova Marche | 1,160.64 mi (1,867.87 km) |
| Drogheda to Civitavecchia | 1,155.97 mi (1,860.36 km) |
| Drogheda to Civitella in Val di Chiana | 1,084.79 mi (1,745.79 km) |
| Drogheda to Clusone | 902.80 mi (1,452.92 km) |
| Drogheda to Coccaglio | 918.93 mi (1,478.87 km) |
| Drogheda to Codigoro | 1,029.23 mi (1,656.38 km) |
| Drogheda to Codogno | 928.98 mi (1,495.04 km) |
| Drogheda to Codroipo | 1,009.45 mi (1,624.55 km) |
| Drogheda to Cogoleto | 932.66 mi (1,500.97 km) |
| Drogheda to Colle di Val d'Elsa | 1,065.92 mi (1,715.43 km) |
| Drogheda to Colle Salvetti | 1,033.91 mi (1,663.92 km) |
| Drogheda to Collecchio | 966.72 mi (1,555.78 km) |
| Drogheda to Colleferro | 1,215.68 mi (1,956.45 km) |
| Drogheda to Collegno | 862.18 mi (1,387.55 km) |
