| Opoczno to Bagnolet | 808.13 mi (1,300.55 km) |
| Opoczno to Bagnols-sur-Ceze | 879.06 mi (1,414.72 km) |
| Opoczno to Bailleul | 761.75 mi (1,225.91 km) |
| Opoczno to Balma | 1,023.81 mi (1,647.66 km) |
| Opoczno to Bar-le-Duc | 692.81 mi (1,114.96 km) |
| Opoczno to Barentin | 857.18 mi (1,379.50 km) |
| Opoczno to Basse-Goulaine | 1,017.15 mi (1,636.95 km) |
| Opoczno to Bastia | 785.56 mi (1,264.24 km) |
| Opoczno to Bayeux | 933.84 mi (1,502.88 km) |
| Opoczno to Bayonne | 1,147.92 mi (1,847.40 km) |
| Opoczno to Beaucaire | 894.18 mi (1,439.05 km) |
| Opoczno to Beauchamp | 814.71 mi (1,311.15 km) |
| Opoczno to Beaumont | 874.55 mi (1,407.45 km) |
| Opoczno to Beaumont-sur-Oise | 807.80 mi (1,300.03 km) |
| Opoczno to Beaune | 757.56 mi (1,219.18 km) |
