| Grenzach-Wyhlen to Cognac | 399.95 mi (643.65 km) |
| Grenzach-Wyhlen to Cogolin | 302.05 mi (486.09 km) |
| Grenzach-Wyhlen to Colmar | 39.24 mi (63.14 km) |
| Grenzach-Wyhlen to Colombes | 266.19 mi (428.40 km) |
| Grenzach-Wyhlen to Colomiers | 409.02 mi (658.26 km) |
| Grenzach-Wyhlen to Combs-la-Ville | 247.55 mi (398.39 km) |
| Grenzach-Wyhlen to Comines | 305.41 mi (491.51 km) |
| Grenzach-Wyhlen to Compiegne | 256.11 mi (412.16 km) |
| Grenzach-Wyhlen to Concarneau | 538.21 mi (866.16 km) |
| Grenzach-Wyhlen to Conde-sur-l'Escaut | 272.12 mi (437.93 km) |
| Grenzach-Wyhlen to Conflans-Sainte-Honorine | 274.50 mi (441.76 km) |
| Grenzach-Wyhlen to Corbas | 184.55 mi (297.00 km) |
| Grenzach-Wyhlen to Corbeil-Essonnes | 249.93 mi (402.22 km) |
| Grenzach-Wyhlen to Cormeilles-en-Parisis | 269.51 mi (433.73 km) |
| Grenzach-Wyhlen to Cosne sur Loire | 221.25 mi (356.06 km) |
