| Niagara Falls to Coudekerque-Branche | 3,672.18 mi (5,909.80 km) |
| Niagara Falls to Coueron | 3,618.68 mi (5,823.70 km) |
| Niagara Falls to Coulommiers | 3,767.75 mi (6,063.60 km) |
| Niagara Falls to Courbevoic | 3,731.55 mi (6,005.35 km) |
| Niagara Falls to Courcouronnes | 3,747.30 mi (6,030.69 km) |
| Niagara Falls to Cournon-d'Auvergne | 3,873.23 mi (6,233.36 km) |
| Niagara Falls to Courrieres | 3,711.14 mi (5,972.50 km) |
| Niagara Falls to Coutras | 3,754.95 mi (6,043.01 km) |
| Niagara Falls to Couzeix | 3,786.10 mi (6,093.13 km) |
| Niagara Falls to Cran-Gevrier | 3,988.92 mi (6,419.54 km) |
| Niagara Falls to Craponne | 3,937.06 mi (6,336.09 km) |
| Niagara Falls to Creil | 3,729.62 mi (6,002.24 km) |
| Niagara Falls to Crepy-en-Valois | 3,746.63 mi (6,029.62 km) |
| Niagara Falls to Crest | 3,985.16 mi (6,413.49 km) |
| Niagara Falls to Creteil | 3,743.39 mi (6,024.41 km) |
