| Trets to Cognac | 334.23 mi (537.90 km) |
| Trets to Cogolin | 44.49 mi (71.60 km) |
| Trets to Colmar | 330.17 mi (531.36 km) |
| Trets to Colombes | 412.40 mi (663.70 km) |
| Trets to Colomiers | 218.14 mi (351.06 km) |
| Trets to Combs-la-Ville | 390.68 mi (628.73 km) |
| Trets to Comines | 520.73 mi (838.03 km) |
| Trets to Compiegne | 434.21 mi (698.80 km) |
| Trets to Concarneau | 555.01 mi (893.20 km) |
| Trets to Conde-sur-l'Escaut | 493.75 mi (794.61 km) |
| Trets to Conflans-Sainte-Honorine | 420.09 mi (676.07 km) |
| Trets to Corbas | 158.25 mi (254.67 km) |
| Trets to Corbeil-Essonnes | 388.59 mi (625.37 km) |
| Trets to Cormeilles-en-Parisis | 416.52 mi (670.33 km) |
| Trets to Cosne sur Loire | 304.76 mi (490.47 km) |
