| Castricum to Coudekerque-Branche | 143.35 mi (230.69 km) |
| Castricum to Coueron | 465.20 mi (748.66 km) |
| Castricum to Coulommiers | 267.15 mi (429.94 km) |
| Castricum to Courbevoic | 273.50 mi (440.15 km) |
| Castricum to Courcouronnes | 288.44 mi (464.20 km) |
| Castricum to Cournon-d'Auvergne | 475.01 mi (764.46 km) |
| Castricum to Courrieres | 162.34 mi (261.27 km) |
| Castricum to Coutras | 562.57 mi (905.36 km) |
| Castricum to Couzeix | 486.24 mi (782.53 km) |
| Castricum to Cran-Gevrier | 463.75 mi (746.34 km) |
| Castricum to Craponne | 470.17 mi (756.66 km) |
| Castricum to Creil | 246.50 mi (396.70 km) |
| Castricum to Crepy-en-Valois | 241.83 mi (389.19 km) |
| Castricum to Crest | 540.67 mi (870.12 km) |
| Castricum to Creteil | 277.03 mi (445.84 km) |
