| Saint Helens to Cognac | 546.55 mi (879.58 km) |
| Saint Helens to Cogolin | 821.87 mi (1,322.68 km) |
| Saint Helens to Colmar | 575.78 mi (926.63 km) |
| Saint Helens to Colombes | 380.24 mi (611.93 km) |
| Saint Helens to Colomiers | 704.56 mi (1,133.88 km) |
| Saint Helens to Combs-la-Ville | 402.56 mi (647.85 km) |
| Saint Helens to Comines | 306.80 mi (493.74 km) |
| Saint Helens to Compiegne | 367.69 mi (591.74 km) |
| Saint Helens to Concarneau | 388.55 mi (625.31 km) |
| Saint Helens to Conde-sur-l'Escaut | 340.23 mi (547.54 km) |
| Saint Helens to Conflans-Sainte-Honorine | 372.08 mi (598.80 km) |
| Saint Helens to Corbas | 636.93 mi (1,025.04 km) |
| Saint Helens to Corbeil-Essonnes | 403.91 mi (650.03 km) |
| Saint Helens to Cormeilles-en-Parisis | 376.07 mi (605.22 km) |
| Saint Helens to Cosne sur Loire | 485.99 mi (782.13 km) |
