| Letchworth to Bierun | 846.53 mi (1,362.35 km) |
| Letchworth to Bierun Stary | 847.06 mi (1,363.21 km) |
| Letchworth to Bilgoraj | 993.50 mi (1,598.88 km) |
| Letchworth to Biskupiec | 889.13 mi (1,430.92 km) |
| Letchworth to Blachownia | 829.50 mi (1,334.95 km) |
| Letchworth to Blonie | 882.09 mi (1,419.59 km) |
| Letchworth to Bochnia | 906.19 mi (1,458.37 km) |
| Letchworth to Bogatynia | 656.99 mi (1,057.32 km) |
| Letchworth to Boguszow-Gorce | 712.03 mi (1,145.91 km) |
| Letchworth to Boleslawiec | 678.05 mi (1,091.22 km) |
| Letchworth to Braniewo | 844.17 mi (1,358.56 km) |
| Letchworth to Brodnica | 825.36 mi (1,328.28 km) |
| Letchworth to Brwinow | 886.82 mi (1,427.19 km) |
| Letchworth to Brzeg | 765.11 mi (1,231.32 km) |
| Letchworth to Brzeg Dolny | 727.07 mi (1,170.11 km) |
