| Helston to Cognac | 380.59 mi (612.49 km) |
| Helston to Cogolin | 731.13 mi (1,176.63 km) |
| Helston to Colmar | 587.25 mi (945.09 km) |
| Helston to Colombes | 346.94 mi (558.35 km) |
| Helston to Colomiers | 545.67 mi (878.17 km) |
| Helston to Combs-la-Ville | 365.58 mi (588.34 km) |
| Helston to Comines | 366.99 mi (590.61 km) |
| Helston to Compiegne | 364.15 mi (586.04 km) |
| Helston to Concarneau | 165.46 mi (266.29 km) |
| Helston to Conde-sur-l'Escaut | 391.78 mi (630.50 km) |
| Helston to Conflans-Sainte-Honorine | 338.79 mi (545.23 km) |
| Helston to Corbas | 561.32 mi (903.36 km) |
| Helston to Corbeil-Essonnes | 363.47 mi (584.95 km) |
| Helston to Cormeilles-en-Parisis | 343.76 mi (553.23 km) |
| Helston to Cosne sur Loire | 416.69 mi (670.59 km) |
