| Opalenica to Coudekerque-Branche | 606.41 mi (975.92 km) |
| Opalenica to Coueron | 879.54 mi (1,415.48 km) |
| Opalenica to Coulommiers | 631.69 mi (1,016.60 km) |
| Opalenica to Courbevoic | 662.82 mi (1,066.71 km) |
| Opalenica to Courcouronnes | 664.25 mi (1,069.01 km) |
| Opalenica to Cournon-d'Auvergne | 749.32 mi (1,205.91 km) |
| Opalenica to Courrieres | 593.66 mi (955.40 km) |
| Opalenica to Coutras | 903.21 mi (1,453.58 km) |
| Opalenica to Couzeix | 815.38 mi (1,312.24 km) |
| Opalenica to Cran-Gevrier | 641.72 mi (1,032.74 km) |
| Opalenica to Craponne | 695.72 mi (1,119.65 km) |
| Opalenica to Creil | 642.76 mi (1,034.42 km) |
| Opalenica to Crepy-en-Valois | 626.88 mi (1,008.87 km) |
| Opalenica to Crest | 737.31 mi (1,186.59 km) |
| Opalenica to Creteil | 657.59 mi (1,058.29 km) |
