| Helmstedt to Creutzwald | 281.42 mi (452.90 km) |
| Helmstedt to Croissy-sur-Seine | 452.48 mi (728.20 km) |
| Helmstedt to Croix | 354.74 mi (570.90 km) |
| Helmstedt to Crosne | 447.08 mi (719.51 km) |
| Helmstedt to Cuers | 661.86 mi (1,065.16 km) |
| Helmstedt to Cugnaux | 747.74 mi (1,203.38 km) |
| Helmstedt to Cusset | 541.32 mi (871.17 km) |
| Helmstedt to Dammarie-le-Lys | 448.75 mi (722.20 km) |
| Helmstedt to Dammartin-en-Goele | 425.40 mi (684.61 km) |
| Helmstedt to Dardilly | 526.17 mi (846.79 km) |
| Helmstedt to Darnetal | 470.74 mi (757.59 km) |
| Helmstedt to Dax | 808.91 mi (1,301.82 km) |
| Helmstedt to Decines-Charpieu | 523.40 mi (842.33 km) |
| Helmstedt to Denain | 354.13 mi (569.92 km) |
| Helmstedt to Deuil-la-Barre | 441.70 mi (710.84 km) |
