| Penarth to Bicaz | 1,348.47 mi (2,170.15 km) |
| Penarth to Bistrita | 1,273.73 mi (2,049.88 km) |
| Penarth to Blaj | 1,276.61 mi (2,054.51 km) |
| Penarth to Bocsa | 1,208.42 mi (1,944.76 km) |
| Penarth to Boldesti-Scaeni | 1,403.91 mi (2,259.37 km) |
| Penarth to Bolintin Vale | 1,412.13 mi (2,272.60 km) |
| Penarth to Borsa | 1,266.67 mi (2,038.51 km) |
| Penarth to Botosani | 1,350.67 mi (2,173.69 km) |
| Penarth to Brad | 1,229.90 mi (1,979.33 km) |
| Penarth to Bragadiru | 1,424.07 mi (2,291.82 km) |
| Penarth to Braila | 1,478.68 mi (2,379.71 km) |
| Penarth to Brasov | 1,365.47 mi (2,197.52 km) |
| Penarth to Breaza | 1,382.96 mi (2,225.66 km) |
| Penarth to Bucharest | 1,427.41 mi (2,297.20 km) |
| Penarth to Buftea | 1,416.09 mi (2,278.98 km) |
