| Groningen to Coudekerque-Branche | 232.95 mi (374.89 km) |
| Groningen to Coueron | 552.68 mi (889.45 km) |
| Groningen to Coulommiers | 339.59 mi (546.52 km) |
| Groningen to Courbevoic | 352.19 mi (566.79 km) |
| Groningen to Courcouronnes | 364.79 mi (587.07 km) |
| Groningen to Cournon-d'Auvergne | 537.98 mi (865.79 km) |
| Groningen to Courrieres | 245.31 mi (394.78 km) |
| Groningen to Coutras | 640.24 mi (1,030.37 km) |
| Groningen to Couzeix | 560.24 mi (901.62 km) |
| Groningen to Cran-Gevrier | 505.71 mi (813.86 km) |
| Groningen to Craponne | 522.77 mi (841.31 km) |
| Groningen to Creil | 325.46 mi (523.78 km) |
| Groningen to Crepy-en-Valois | 317.79 mi (511.43 km) |
| Groningen to Crest | 590.62 mi (950.51 km) |
| Groningen to Creteil | 353.90 mi (569.54 km) |
