| Boulogne-sur-Mer to Bad Camberg | 293.65 mi (472.58 km) |
| Boulogne-sur-Mer to Bad Doberan | 491.90 mi (791.63 km) |
| Boulogne-sur-Mer to Bad Driburg | 327.57 mi (527.17 km) |
| Boulogne-sur-Mer to Bad Durkheim | 303.27 mi (488.07 km) |
| Boulogne-sur-Mer to Bad Durrenberg | 455.66 mi (733.32 km) |
| Boulogne-sur-Mer to Bad Durrheim | 363.02 mi (584.22 km) |
| Boulogne-sur-Mer to Bad Ems | 268.99 mi (432.89 km) |
| Boulogne-sur-Mer to Bad Essen | 309.26 mi (497.71 km) |
| Boulogne-sur-Mer to Bad Fallingbostel | 375.43 mi (604.20 km) |
| Boulogne-sur-Mer to Bad Frankenhausen | 414.11 mi (666.45 km) |
| Boulogne-sur-Mer to Bad Freienwalde | 549.05 mi (883.61 km) |
| Boulogne-sur-Mer to Bad Gandersheim | 371.64 mi (598.09 km) |
| Boulogne-sur-Mer to Bad Harzburg | 394.38 mi (634.69 km) |
| Boulogne-sur-Mer to Bad Hersfeld | 353.38 mi (568.72 km) |
| Boulogne-sur-Mer to Bad Homburg | 309.07 mi (497.41 km) |
