| Carlow to Bierun Stary | 1,129.78 mi (1,818.20 km) |
| Carlow to Bilgoraj | 1,271.11 mi (2,045.66 km) |
| Carlow to Biskupiec | 1,145.44 mi (1,843.41 km) |
| Carlow to Blachownia | 1,109.27 mi (1,785.20 km) |
| Carlow to Blonie | 1,152.04 mi (1,854.02 km) |
| Carlow to Bochnia | 1,188.22 mi (1,912.26 km) |
| Carlow to Bogatynia | 939.49 mi (1,511.96 km) |
| Carlow to Boguszow-Gorce | 994.20 mi (1,600.01 km) |
| Carlow to Boleslawiec | 958.10 mi (1,541.91 km) |
| Carlow to Braniewo | 1,095.76 mi (1,763.46 km) |
| Carlow to Brodnica | 1,087.79 mi (1,750.63 km) |
| Carlow to Brwinow | 1,157.08 mi (1,862.14 km) |
| Carlow to Brzeg | 1,045.71 mi (1,682.92 km) |
| Carlow to Brzeg Dolny | 1,006.14 mi (1,619.22 km) |
| Carlow to Brzesko | 1,196.27 mi (1,925.21 km) |
