| Mercer Island to Coudekerque-Branche | 4,875.95 mi (7,847.08 km) |
| Mercer Island to Coueron | 4,974.80 mi (8,006.17 km) |
| Mercer Island to Coulommiers | 5,017.95 mi (8,075.61 km) |
| Mercer Island to Courbevoic | 4,991.41 mi (8,032.90 km) |
| Mercer Island to Courcouronnes | 5,011.47 mi (8,065.18 km) |
| Mercer Island to Cournon-d'Auvergne | 5,195.08 mi (8,360.67 km) |
| Mercer Island to Courrieres | 4,921.94 mi (7,921.09 km) |
| Mercer Island to Coutras | 5,140.71 mi (8,273.18 km) |
| Mercer Island to Couzeix | 5,133.12 mi (8,260.96 km) |
| Mercer Island to Cran-Gevrier | 5,263.76 mi (8,471.21 km) |
| Mercer Island to Craponne | 5,236.29 mi (8,426.99 km) |
| Mercer Island to Creil | 4,977.26 mi (8,010.13 km) |
| Mercer Island to Crepy-en-Valois | 4,989.20 mi (8,029.35 km) |
| Mercer Island to Crest | 5,302.85 mi (8,534.11 km) |
| Mercer Island to Creteil | 5,002.96 mi (8,051.48 km) |
