| Widnes to Coudekerque-Branche | 270.27 mi (434.96 km) |
| Widnes to Coueron | 427.04 mi (687.26 km) |
| Widnes to Coulommiers | 402.63 mi (647.97 km) |
| Widnes to Courbevoic | 376.40 mi (605.76 km) |
| Widnes to Courcouronnes | 396.66 mi (638.36 km) |
| Widnes to Cournon-d'Auvergne | 589.25 mi (948.31 km) |
| Widnes to Courrieres | 314.16 mi (505.58 km) |
| Widnes to Coutras | 586.75 mi (944.29 km) |
| Widnes to Couzeix | 546.70 mi (879.83 km) |
| Widnes to Cran-Gevrier | 648.48 mi (1,043.62 km) |
| Widnes to Craponne | 622.61 mi (1,001.99 km) |
| Widnes to Creil | 361.87 mi (582.37 km) |
| Widnes to Crepy-en-Valois | 374.24 mi (602.27 km) |
| Widnes to Crest | 691.27 mi (1,112.49 km) |
| Widnes to Creteil | 387.80 mi (624.10 km) |
