| Aberystwyth to Bicaz | 1,390.56 mi (2,237.90 km) |
| Aberystwyth to Bistrita | 1,316.75 mi (2,119.10 km) |
| Aberystwyth to Blaj | 1,323.23 mi (2,129.54 km) |
| Aberystwyth to Bocsa | 1,259.94 mi (2,027.68 km) |
| Aberystwyth to Boldesti-Scaeni | 1,451.45 mi (2,335.89 km) |
| Aberystwyth to Bolintin Vale | 1,461.49 mi (2,352.04 km) |
| Aberystwyth to Borsa | 1,307.81 mi (2,104.72 km) |
| Aberystwyth to Botosani | 1,389.58 mi (2,236.31 km) |
| Aberystwyth to Brad | 1,277.92 mi (2,056.61 km) |
| Aberystwyth to Bragadiru | 1,473.39 mi (2,371.19 km) |
| Aberystwyth to Braila | 1,523.54 mi (2,451.90 km) |
| Aberystwyth to Brasov | 1,411.72 mi (2,271.95 km) |
| Aberystwyth to Breaza | 1,430.49 mi (2,302.14 km) |
| Aberystwyth to Bucharest | 1,476.43 mi (2,376.08 km) |
| Aberystwyth to Buftea | 1,464.93 mi (2,357.57 km) |
