| Glencullen to Cologno al Serio | 885.98 mi (1,425.84 km) |
| Glencullen to Cologno Monzese | 873.54 mi (1,405.82 km) |
| Glencullen to Colorno | 940.89 mi (1,514.21 km) |
| Glencullen to Comacchio | 1,016.70 mi (1,636.22 km) |
| Glencullen to Comiso | 1,503.88 mi (2,420.26 km) |
| Glencullen to Como | 853.52 mi (1,373.60 km) |
| Glencullen to Concordia Sagittaria | 994.14 mi (1,599.92 km) |
| Glencullen to Concorezzo | 872.70 mi (1,404.48 km) |
| Glencullen to Conegliano | 968.10 mi (1,558.01 km) |
| Glencullen to Conselice | 1,012.52 mi (1,629.49 km) |
| Glencullen to Conselve | 980.74 mi (1,578.35 km) |
| Glencullen to Conversano | 1,375.55 mi (2,213.73 km) |
| Glencullen to Copertino | 1,444.34 mi (2,324.44 km) |
| Glencullen to Copparo | 994.70 mi (1,600.81 km) |
| Glencullen to Corato | 1,340.50 mi (2,157.32 km) |
