| Opoczno to Belvedere Marittimo | 839.90 mi (1,351.68 km) |
| Opoczno to Benevento | 754.50 mi (1,214.26 km) |
| Opoczno to Bergamo | 623.50 mi (1,003.42 km) |
| Opoczno to Bernalda | 776.62 mi (1,249.85 km) |
| Opoczno to Bertinoro | 625.89 mi (1,007.27 km) |
| Opoczno to Besana in Brianza | 637.04 mi (1,025.22 km) |
| Opoczno to Besozzo | 652.68 mi (1,050.39 km) |
| Opoczno to Biancavilla | 984.65 mi (1,584.63 km) |
| Opoczno to Biassono | 640.73 mi (1,031.15 km) |
| Opoczno to Bibbiano | 647.72 mi (1,042.40 km) |
| Opoczno to Bibbiena | 660.48 mi (1,062.95 km) |
| Opoczno to Biella | 687.44 mi (1,106.32 km) |
| Opoczno to Bisceglie | 722.83 mi (1,163.28 km) |
| Opoczno to Bisignano | 841.81 mi (1,354.77 km) |
| Opoczno to Bitetto | 734.20 mi (1,181.59 km) |
