| Boulogne-sur-Mer to Brzeszcze | 772.69 mi (1,243.53 km) |
| Boulogne-sur-Mer to Brzeziny | 785.52 mi (1,264.18 km) |
| Boulogne-sur-Mer to Brzozow | 901.98 mi (1,451.59 km) |
| Boulogne-sur-Mer to Bukowno | 783.20 mi (1,260.43 km) |
| Boulogne-sur-Mer to Busko-Zdroj | 835.66 mi (1,344.86 km) |
| Boulogne-sur-Mer to Bydgoszcz | 715.81 mi (1,151.99 km) |
| Boulogne-sur-Mer to Bystrzyca Klodzka | 660.12 mi (1,062.35 km) |
| Boulogne-sur-Mer to Bytom | 758.47 mi (1,220.64 km) |
| Boulogne-sur-Mer to Bytow | 707.58 mi (1,138.74 km) |
| Boulogne-sur-Mer to Chelm | 949.00 mi (1,527.27 km) |
| Boulogne-sur-Mer to Chelmek | 775.63 mi (1,248.26 km) |
| Boulogne-sur-Mer to Chelmno | 735.11 mi (1,183.05 km) |
| Boulogne-sur-Mer to Chelmza | 741.17 mi (1,192.79 km) |
| Boulogne-sur-Mer to Chodziez | 669.29 mi (1,077.11 km) |
| Boulogne-sur-Mer to Chojnice | 703.48 mi (1,132.14 km) |
