| Unna to Coudekerque-Branche | 231.58 mi (372.68 km) |
| Unna to Coueron | 517.36 mi (832.61 km) |
| Unna to Coulommiers | 277.07 mi (445.91 km) |
| Unna to Courbevoic | 301.45 mi (485.14 km) |
| Unna to Courcouronnes | 307.81 mi (495.37 km) |
| Unna to Cournon-d'Auvergne | 449.50 mi (723.40 km) |
| Unna to Courrieres | 219.15 mi (352.69 km) |
| Unna to Coutras | 574.22 mi (924.11 km) |
| Unna to Couzeix | 488.84 mi (786.71 km) |
| Unna to Cran-Gevrier | 395.70 mi (636.81 km) |
| Unna to Craponne | 422.21 mi (679.48 km) |
| Unna to Creil | 277.94 mi (447.30 km) |
| Unna to Crepy-en-Valois | 264.50 mi (425.66 km) |
| Unna to Crest | 486.00 mi (782.14 km) |
| Unna to Creteil | 298.94 mi (481.10 km) |
