| Aberystwyth to Bougival | 366.40 mi (589.67 km) |
| Aberystwyth to Bouguenais | 378.01 mi (608.35 km) |
| Aberystwyth to Boulogne-Billancourt | 371.14 mi (597.30 km) |
| Aberystwyth to Boulogne-sur-Mer | 270.87 mi (435.93 km) |
| Aberystwyth to Bourg-de-Peage | 656.93 mi (1,057.23 km) |
| Aberystwyth to Bourg-en-Bresse | 598.99 mi (963.99 km) |
| Aberystwyth to Bourg-la-Reine | 376.24 mi (605.50 km) |
| Aberystwyth to Bourg-les-Valence | 657.62 mi (1,058.34 km) |
| Aberystwyth to Bourges | 467.82 mi (752.89 km) |
| Aberystwyth to Bourgoin-Jallieu | 633.31 mi (1,019.21 km) |
| Aberystwyth to Bressuire | 417.21 mi (671.43 km) |
| Aberystwyth to Brest | 278.61 mi (448.38 km) |
| Aberystwyth to Bretigny-sur-Orge | 384.15 mi (618.23 km) |
| Aberystwyth to Breuillet | 382.13 mi (614.98 km) |
| Aberystwyth to Briancon | 712.03 mi (1,145.91 km) |
