| Helston to Creutzwald | 538.23 mi (866.19 km) |
| Helston to Croissy-sur-Seine | 343.07 mi (552.12 km) |
| Helston to Croix | 372.89 mi (600.11 km) |
| Helston to Crosne | 360.32 mi (579.88 km) |
| Helston to Cuers | 715.49 mi (1,151.48 km) |
| Helston to Cugnaux | 550.30 mi (885.62 km) |
| Helston to Cusset | 486.44 mi (782.84 km) |
| Helston to Dammarie-le-Lys | 372.52 mi (599.51 km) |
| Helston to Dammartin-en-Goele | 363.30 mi (584.68 km) |
| Helston to Dardilly | 549.90 mi (884.98 km) |
| Helston to Darnetal | 289.98 mi (466.69 km) |
| Helston to Dax | 484.17 mi (779.19 km) |
| Helston to Decines-Charpieu | 559.40 mi (900.27 km) |
| Helston to Denain | 383.22 mi (616.74 km) |
| Helston to Deuil-la-Barre | 349.20 mi (561.98 km) |
