| Rockford to Coudekerque-Branche | 4,095.20 mi (6,590.59 km) |
| Rockford to Coueron | 4,068.04 mi (6,546.87 km) |
| Rockford to Coulommiers | 4,200.92 mi (6,760.72 km) |
| Rockford to Courbevoic | 4,165.85 mi (6,704.28 km) |
| Rockford to Courcouronnes | 4,182.62 mi (6,731.28 km) |
| Rockford to Cournon-d'Auvergne | 4,320.50 mi (6,953.17 km) |
| Rockford to Courrieres | 4,136.17 mi (6,656.52 km) |
| Rockford to Coutras | 4,211.20 mi (6,777.27 km) |
| Rockford to Couzeix | 4,236.35 mi (6,817.75 km) |
| Rockford to Cran-Gevrier | 4,429.89 mi (7,129.22 km) |
| Rockford to Craponne | 4,381.43 mi (7,051.23 km) |
| Rockford to Creil | 4,161.69 mi (6,697.59 km) |
| Rockford to Crepy-en-Valois | 4,178.07 mi (6,723.96 km) |
| Rockford to Crest | 4,433.31 mi (7,134.72 km) |
| Rockford to Creteil | 4,177.83 mi (6,723.57 km) |
