| Owings Mills to Coudekerque-Branche | 3,745.75 mi (6,028.20 km) |
| Owings Mills to Coueron | 3,665.14 mi (5,898.47 km) |
| Owings Mills to Coulommiers | 3,830.63 mi (6,164.81 km) |
| Owings Mills to Courbevoic | 3,793.54 mi (6,105.12 km) |
| Owings Mills to Courcouronnes | 3,808.12 mi (6,128.57 km) |
| Owings Mills to Cournon-d'Auvergne | 3,920.32 mi (6,309.15 km) |
| Owings Mills to Courrieres | 3,782.49 mi (6,087.33 km) |
| Owings Mills to Coutras | 3,792.33 mi (6,103.16 km) |
| Owings Mills to Couzeix | 3,830.36 mi (6,164.37 km) |
| Owings Mills to Cran-Gevrier | 4,042.17 mi (6,505.25 km) |
| Owings Mills to Craponne | 3,986.97 mi (6,416.41 km) |
| Owings Mills to Creil | 3,793.89 mi (6,105.67 km) |
| Owings Mills to Crepy-en-Valois | 3,811.41 mi (6,133.87 km) |
| Owings Mills to Crest | 4,030.52 mi (6,486.50 km) |
| Owings Mills to Creteil | 3,805.15 mi (6,123.80 km) |
