| Southborough to Coudekerque-Branche | 92.74 mi (149.26 km) |
| Southborough to Coueron | 286.90 mi (461.71 km) |
| Southborough to Coulommiers | 204.69 mi (329.41 km) |
| Southborough to Courbevoic | 179.46 mi (288.81 km) |
| Southborough to Courcouronnes | 199.93 mi (321.75 km) |
| Southborough to Cournon-d'Auvergne | 397.62 mi (639.91 km) |
| Southborough to Courrieres | 126.73 mi (203.95 km) |
| Southborough to Coutras | 423.17 mi (681.03 km) |
| Southborough to Couzeix | 367.77 mi (591.86 km) |
| Southborough to Cran-Gevrier | 450.53 mi (725.06 km) |
| Southborough to Craponne | 426.06 mi (685.68 km) |
| Southborough to Creil | 163.94 mi (263.83 km) |
| Southborough to Crepy-en-Valois | 176.47 mi (284.00 km) |
| Southborough to Crest | 495.67 mi (797.70 km) |
| Southborough to Creteil | 190.56 mi (306.68 km) |
