| Boulogne-sur-Mer to Northeim | 369.00 mi (593.85 km) |
| Boulogne-sur-Mer to Norvenich | 220.08 mi (354.18 km) |
| Boulogne-sur-Mer to Nossen | 509.28 mi (819.60 km) |
| Boulogne-sur-Mer to Nottuln | 261.25 mi (420.44 km) |
| Boulogne-sur-Mer to Numbrecht | 258.99 mi (416.80 km) |
| Boulogne-sur-Mer to Nuremberg | 428.27 mi (689.24 km) |
| Boulogne-sur-Mer to Nurtingen | 373.93 mi (601.78 km) |
| Boulogne-sur-Mer to Nussloch | 328.70 mi (528.99 km) |
| Boulogne-sur-Mer to Ober-Ramstadt | 320.90 mi (516.44 km) |
| Boulogne-sur-Mer to Oberasbach | 423.71 mi (681.90 km) |
| Boulogne-sur-Mer to Oberderdingen | 339.76 mi (546.79 km) |
| Boulogne-sur-Mer to Oberhaching | 485.50 mi (781.34 km) |
| Boulogne-sur-Mer to Oberhausen | 234.06 mi (376.68 km) |
| Boulogne-sur-Mer to Oberhausen-Rheinhausen | 321.39 mi (517.23 km) |
| Boulogne-sur-Mer to Oberkirch | 326.59 mi (525.60 km) |
