| Dumbarton to Cognac | 731.89 mi (1,177.86 km) |
| Dumbarton to Cogolin | 1,005.45 mi (1,618.12 km) |
| Dumbarton to Colmar | 741.35 mi (1,193.09 km) |
| Dumbarton to Colombes | 563.47 mi (906.81 km) |
| Dumbarton to Colomiers | 891.30 mi (1,434.41 km) |
| Dumbarton to Combs-la-Ville | 585.52 mi (942.30 km) |
| Dumbarton to Comines | 474.96 mi (764.37 km) |
| Dumbarton to Compiegne | 546.78 mi (879.96 km) |
| Dumbarton to Concarneau | 558.58 mi (898.95 km) |
| Dumbarton to Conde-sur-l'Escaut | 507.70 mi (817.07 km) |
| Dumbarton to Conflans-Sainte-Honorine | 555.59 mi (894.14 km) |
| Dumbarton to Corbas | 820.26 mi (1,320.07 km) |
| Dumbarton to Corbeil-Essonnes | 587.28 mi (945.13 km) |
| Dumbarton to Cormeilles-en-Parisis | 559.32 mi (900.14 km) |
| Dumbarton to Cosne sur Loire | 670.79 mi (1,079.53 km) |
