| Boulogne-sur-Mer to Nazarje | 680.75 mi (1,095.56 km) |
| Boulogne-sur-Mer to Nova Gorica | 642.14 mi (1,033.43 km) |
| Boulogne-sur-Mer to Nova Vas | 683.43 mi (1,099.88 km) |
| Boulogne-sur-Mer to Novo Mesto | 708.70 mi (1,140.55 km) |
| Boulogne-sur-Mer to Odranci | 726.13 mi (1,168.59 km) |
| Boulogne-sur-Mer to Oplotnica | 698.57 mi (1,124.24 km) |
| Boulogne-sur-Mer to Ormoz | 726.75 mi (1,169.59 km) |
| Boulogne-sur-Mer to Osilnica | 700.70 mi (1,127.67 km) |
| Boulogne-sur-Mer to Pesnica | 700.20 mi (1,126.86 km) |
| Boulogne-sur-Mer to Piran | 656.74 mi (1,056.91 km) |
| Boulogne-sur-Mer to Pivka | 674.90 mi (1,086.15 km) |
| Boulogne-sur-Mer to Podcetrtek | 712.90 mi (1,147.30 km) |
| Boulogne-sur-Mer to Podlehnik | 718.13 mi (1,155.71 km) |
| Boulogne-sur-Mer to Podvelka | 686.81 mi (1,105.32 km) |
| Boulogne-sur-Mer to Poljcane | 706.59 mi (1,137.15 km) |
