| Gelnhausen to Cognac | 537.84 mi (865.56 km) |
| Gelnhausen to Cogolin | 495.92 mi (798.10 km) |
| Gelnhausen to Colmar | 167.69 mi (269.87 km) |
| Gelnhausen to Colombes | 322.05 mi (518.29 km) |
| Gelnhausen to Colomiers | 585.58 mi (942.40 km) |
| Gelnhausen to Combs-la-Ville | 314.98 mi (506.91 km) |
| Gelnhausen to Comines | 273.47 mi (440.10 km) |
| Gelnhausen to Compiegne | 287.92 mi (463.36 km) |
| Gelnhausen to Concarneau | 613.18 mi (986.83 km) |
| Gelnhausen to Conde-sur-l'Escaut | 246.52 mi (396.73 km) |
| Gelnhausen to Conflans-Sainte-Honorine | 327.08 mi (526.39 km) |
| Gelnhausen to Corbas | 370.02 mi (595.50 km) |
| Gelnhausen to Corbeil-Essonnes | 319.75 mi (514.59 km) |
| Gelnhausen to Cormeilles-en-Parisis | 323.15 mi (520.07 km) |
| Gelnhausen to Cosne sur Loire | 343.08 mi (552.14 km) |
