| Allouez to Coudekerque-Branche | 3,953.77 mi (6,362.97 km) |
| Allouez to Coueron | 3,934.70 mi (6,332.29 km) |
| Allouez to Coulommiers | 4,062.16 mi (6,537.42 km) |
| Allouez to Courbevoic | 4,027.47 mi (6,481.59 km) |
| Allouez to Courcouronnes | 4,044.53 mi (6,509.04 km) |
| Allouez to Cournon-d'Auvergne | 4,186.08 mi (6,736.85 km) |
| Allouez to Courrieres | 3,995.22 mi (6,429.68 km) |
| Allouez to Coutras | 4,080.25 mi (6,566.52 km) |
| Allouez to Couzeix | 4,103.11 mi (6,603.32 km) |
| Allouez to Cran-Gevrier | 4,293.24 mi (6,909.30 km) |
| Allouez to Craponne | 4,245.95 mi (6,833.20 km) |
| Allouez to Creil | 4,022.66 mi (6,473.85 km) |
| Allouez to Crepy-en-Valois | 4,038.85 mi (6,499.89 km) |
| Allouez to Crest | 4,299.07 mi (6,918.68 km) |
| Allouez to Creteil | 4,039.48 mi (6,500.92 km) |
