| Louth to Bicaz | 1,230.23 mi (1,979.86 km) |
| Louth to Bistrita | 1,158.01 mi (1,863.64 km) |
| Louth to Blaj | 1,169.98 mi (1,882.89 km) |
| Louth to Bocsa | 1,115.85 mi (1,795.78 km) |
| Louth to Boldesti-Scaeni | 1,299.10 mi (2,090.70 km) |
| Louth to Bolintin Vale | 1,312.22 mi (2,111.82 km) |
| Louth to Borsa | 1,146.53 mi (1,845.16 km) |
| Louth to Botosani | 1,225.14 mi (1,971.67 km) |
| Louth to Brad | 1,127.26 mi (1,814.14 km) |
| Louth to Bragadiru | 1,323.98 mi (2,130.74 km) |
| Louth to Braila | 1,366.65 mi (2,199.42 km) |
| Louth to Brasov | 1,257.44 mi (2,023.65 km) |
| Louth to Breaza | 1,278.19 mi (2,057.05 km) |
| Louth to Bucharest | 1,326.48 mi (2,134.76 km) |
| Louth to Buftea | 1,314.71 mi (2,115.82 km) |
