| Idanha-a-Nova to Bierun | 1,455.96 mi (2,343.15 km) |
| Idanha-a-Nova to Bierun Stary | 1,454.69 mi (2,341.10 km) |
| Idanha-a-Nova to Bilgoraj | 1,617.54 mi (2,603.18 km) |
| Idanha-a-Nova to Biskupiec | 1,626.03 mi (2,616.84 km) |
| Idanha-a-Nova to Blachownia | 1,465.62 mi (2,358.69 km) |
| Idanha-a-Nova to Blonie | 1,567.17 mi (2,522.12 km) |
| Idanha-a-Nova to Bochnia | 1,509.09 mi (2,428.64 km) |
| Idanha-a-Nova to Bogatynia | 1,308.87 mi (2,106.43 km) |
| Idanha-a-Nova to Boguszow-Gorce | 1,353.56 mi (2,178.34 km) |
| Idanha-a-Nova to Boleslawiec | 1,343.71 mi (2,162.49 km) |
| Idanha-a-Nova to Braniewo | 1,600.56 mi (2,575.85 km) |
| Idanha-a-Nova to Brodnica | 1,549.82 mi (2,494.20 km) |
| Idanha-a-Nova to Brwinow | 1,569.64 mi (2,526.08 km) |
| Idanha-a-Nova to Brzeg | 1,407.63 mi (2,265.36 km) |
| Idanha-a-Nova to Brzeg Dolny | 1,388.71 mi (2,234.91 km) |
