| Plonsk to Coudekerque-Branche | 774.15 mi (1,245.88 km) |
| Plonsk to Coueron | 1,047.01 mi (1,685.01 km) |
| Plonsk to Coulommiers | 798.98 mi (1,285.84 km) |
| Plonsk to Courbevoic | 830.66 mi (1,336.82 km) |
| Plonsk to Courcouronnes | 831.59 mi (1,338.32 km) |
| Plonsk to Cournon-d'Auvergne | 907.07 mi (1,459.79 km) |
| Plonsk to Courrieres | 762.13 mi (1,226.53 km) |
| Plonsk to Coutras | 1,064.82 mi (1,713.66 km) |
| Plonsk to Couzeix | 977.26 mi (1,572.75 km) |
| Plonsk to Cran-Gevrier | 791.84 mi (1,274.35 km) |
| Plonsk to Craponne | 849.56 mi (1,367.23 km) |
| Plonsk to Creil | 810.94 mi (1,305.08 km) |
| Plonsk to Crepy-en-Valois | 794.90 mi (1,279.28 km) |
| Plonsk to Crest | 885.39 mi (1,424.90 km) |
| Plonsk to Creteil | 825.18 mi (1,328.00 km) |
