| Olsztyn to Coudekerque-Branche | 783.48 mi (1,260.89 km) |
| Olsztyn to Coueron | 1,070.07 mi (1,722.12 km) |
| Olsztyn to Coulommiers | 823.24 mi (1,324.88 km) |
| Olsztyn to Courbevoic | 852.82 mi (1,372.48 km) |
| Olsztyn to Courcouronnes | 855.60 mi (1,376.96 km) |
| Olsztyn to Cournon-d'Auvergne | 946.34 mi (1,522.98 km) |
| Olsztyn to Courrieres | 776.05 mi (1,248.93 km) |
| Olsztyn to Coutras | 1,099.51 mi (1,769.49 km) |
| Olsztyn to Couzeix | 1,011.64 mi (1,628.08 km) |
| Olsztyn to Cran-Gevrier | 837.66 mi (1,348.09 km) |
| Olsztyn to Craponne | 892.48 mi (1,436.30 km) |
| Olsztyn to Creil | 831.48 mi (1,338.14 km) |
| Olsztyn to Crepy-en-Valois | 816.35 mi (1,313.79 km) |
| Olsztyn to Crest | 932.79 mi (1,501.18 km) |
| Olsztyn to Creteil | 848.34 mi (1,365.27 km) |
