| Thonex to Cognac | 314.63 mi (506.35 km) |
| Thonex to Cogolin | 203.21 mi (327.04 km) |
| Thonex to Colmar | 142.27 mi (228.96 km) |
| Thonex to Colombes | 263.47 mi (424.01 km) |
| Thonex to Colomiers | 296.19 mi (476.67 km) |
| Thonex to Combs-la-Ville | 241.20 mi (388.18 km) |
| Thonex to Comines | 348.06 mi (560.15 km) |
| Thonex to Compiegne | 272.29 mi (438.21 km) |
| Thonex to Concarneau | 489.53 mi (787.82 km) |
| Thonex to Conde-sur-l'Escaut | 317.86 mi (511.54 km) |
| Thonex to Conflans-Sainte-Honorine | 272.11 mi (437.92 km) |
| Thonex to Corbas | 71.13 mi (114.47 km) |
| Thonex to Corbeil-Essonnes | 241.13 mi (388.06 km) |
| Thonex to Cormeilles-en-Parisis | 267.55 mi (430.58 km) |
| Thonex to Cosne sur Loire | 175.88 mi (283.05 km) |
