| Guyancourt to Cologno al Serio | 420.18 mi (676.21 km) |
| Guyancourt to Cologno Monzese | 405.69 mi (652.89 km) |
| Guyancourt to Colorno | 473.38 mi (761.83 km) |
| Guyancourt to Comacchio | 554.59 mi (892.53 km) |
| Guyancourt to Comiso | 1,031.37 mi (1,659.82 km) |
| Guyancourt to Como | 386.87 mi (622.61 km) |
| Guyancourt to Concordia Sagittaria | 545.60 mi (878.06 km) |
| Guyancourt to Concorezzo | 405.48 mi (652.56 km) |
| Guyancourt to Conegliano | 518.07 mi (833.75 km) |
| Guyancourt to Conselice | 547.74 mi (881.51 km) |
| Guyancourt to Conselve | 521.63 mi (839.49 km) |
| Guyancourt to Conversano | 910.22 mi (1,464.86 km) |
| Guyancourt to Copertino | 978.95 mi (1,575.46 km) |
| Guyancourt to Copparo | 532.64 mi (857.20 km) |
| Guyancourt to Corato | 873.89 mi (1,406.39 km) |
