| Cwmbran to Bicaz | 1,342.66 mi (2,160.80 km) |
| Cwmbran to Bistrita | 1,268.13 mi (2,040.86 km) |
| Cwmbran to Blaj | 1,271.92 mi (2,046.96 km) |
| Cwmbran to Bocsa | 1,205.04 mi (1,939.32 km) |
| Cwmbran to Boldesti-Scaeni | 1,399.49 mi (2,252.26 km) |
| Cwmbran to Bolintin Vale | 1,408.19 mi (2,266.27 km) |
| Cwmbran to Borsa | 1,260.62 mi (2,028.77 km) |
| Cwmbran to Botosani | 1,344.11 mi (2,163.14 km) |
| Cwmbran to Brad | 1,225.57 mi (1,972.36 km) |
| Cwmbran to Bragadiru | 1,420.13 mi (2,285.47 km) |
| Cwmbran to Braila | 1,473.58 mi (2,371.50 km) |
| Cwmbran to Brasov | 1,360.71 mi (2,189.85 km) |
| Cwmbran to Breaza | 1,378.53 mi (2,218.53 km) |
| Cwmbran to Bucharest | 1,423.39 mi (2,290.72 km) |
| Cwmbran to Buftea | 1,412.01 mi (2,272.42 km) |
