| Portsmouth to Coudekerque-Branche | 152.29 mi (245.08 km) |
| Portsmouth to Coueron | 249.72 mi (401.89 km) |
| Portsmouth to Coulommiers | 231.22 mi (372.12 km) |
| Portsmouth to Courbevoic | 198.77 mi (319.88 km) |
| Portsmouth to Courcouronnes | 217.69 mi (350.34 km) |
| Portsmouth to Cournon-d'Auvergne | 401.36 mi (645.93 km) |
| Portsmouth to Courrieres | 178.41 mi (287.13 km) |
| Portsmouth to Coutras | 400.78 mi (644.99 km) |
| Portsmouth to Couzeix | 356.92 mi (574.40 km) |
| Portsmouth to Cran-Gevrier | 472.59 mi (760.55 km) |
| Portsmouth to Craponne | 439.76 mi (707.73 km) |
| Portsmouth to Creil | 191.13 mi (307.60 km) |
| Portsmouth to Crepy-en-Valois | 207.14 mi (333.35 km) |
| Portsmouth to Crest | 506.40 mi (814.96 km) |
| Portsmouth to Creteil | 210.77 mi (339.21 km) |
