| Boulogne-sur-Mer to Cottbus | 554.06 mi (891.67 km) |
| Boulogne-sur-Mer to Crailsheim | 391.59 mi (630.20 km) |
| Boulogne-sur-Mer to Cremlingen | 402.58 mi (647.89 km) |
| Boulogne-sur-Mer to Crimmitschau | 470.34 mi (756.94 km) |
| Boulogne-sur-Mer to Cuxhaven | 369.07 mi (593.96 km) |
| Boulogne-sur-Mer to Dachau | 472.03 mi (759.65 km) |
| Boulogne-sur-Mer to Dallgow-Doberitz | 505.49 mi (813.50 km) |
| Boulogne-sur-Mer to Damme | 308.28 mi (496.13 km) |
| Boulogne-sur-Mer to Darmstadt | 316.06 mi (508.64 km) |
| Boulogne-sur-Mer to Dassel | 356.77 mi (574.17 km) |
| Boulogne-sur-Mer to Datteln | 256.07 mi (412.10 km) |
| Boulogne-sur-Mer to Dautphe | 302.93 mi (487.52 km) |
| Boulogne-sur-Mer to Deggendorf | 522.51 mi (840.89 km) |
| Boulogne-sur-Mer to Delbruck | 309.02 mi (497.31 km) |
| Boulogne-sur-Mer to Delitzsch | 468.03 mi (753.23 km) |
