| Welwyn Garden City to Coudekerque-Branche | 123.76 mi (199.17 km) |
| Welwyn Garden City to Coueron | 324.50 mi (522.23 km) |
| Welwyn Garden City to Coulommiers | 252.14 mi (405.77 km) |
| Welwyn Garden City to Courbevoic | 228.03 mi (366.98 km) |
| Welwyn Garden City to Courcouronnes | 248.54 mi (399.98 km) |
| Welwyn Garden City to Cournon-d'Auvergne | 446.39 mi (718.40 km) |
| Welwyn Garden City to Courrieres | 164.95 mi (265.46 km) |
| Welwyn Garden City to Coutras | 467.45 mi (752.29 km) |
| Welwyn Garden City to Couzeix | 414.85 mi (667.63 km) |
| Welwyn Garden City to Cran-Gevrier | 497.87 mi (801.24 km) |
| Welwyn Garden City to Craponne | 474.59 mi (763.78 km) |
| Welwyn Garden City to Creil | 211.65 mi (340.61 km) |
| Welwyn Garden City to Crepy-en-Valois | 223.32 mi (359.40 km) |
| Welwyn Garden City to Crest | 544.35 mi (876.05 km) |
| Welwyn Garden City to Creteil | 239.00 mi (384.64 km) |
