| Boulogne-sur-Mer to Bad Munder am Deister | 352.72 mi (567.66 km) |
| Boulogne-sur-Mer to Bad Munstereifel | 226.00 mi (363.71 km) |
| Boulogne-sur-Mer to Bad Nauheim | 314.14 mi (505.56 km) |
| Boulogne-sur-Mer to Bad Nenndorf | 351.56 mi (565.78 km) |
| Boulogne-sur-Mer to Bad Neuenahr-Ahrweiler | 241.23 mi (388.23 km) |
| Boulogne-sur-Mer to Bad Neustadt | 378.64 mi (609.37 km) |
| Boulogne-sur-Mer to Bad Oeynhausen | 325.46 mi (523.78 km) |
| Boulogne-sur-Mer to Bad Oldesloe | 426.91 mi (687.04 km) |
| Boulogne-sur-Mer to Bad Orb | 341.82 mi (550.11 km) |
| Boulogne-sur-Mer to Bad Pyrmont | 341.14 mi (549.01 km) |
| Boulogne-sur-Mer to Bad Rappenau | 348.03 mi (560.10 km) |
| Boulogne-sur-Mer to Bad Reichenhall | 548.18 mi (882.21 km) |
| Boulogne-sur-Mer to Bad Sackingen | 360.59 mi (580.31 km) |
| Boulogne-sur-Mer to Bad Salzdetfurth | 373.29 mi (600.74 km) |
| Boulogne-sur-Mer to Bad Salzuflen | 321.22 mi (516.96 km) |
