| Barreiro to Blackburn | 1,087.39 mi (1,749.99 km) |
| Barreiro to Blackpool | 1,084.39 mi (1,745.16 km) |
| Barreiro to Blairgowrie | 1,265.79 mi (2,037.10 km) |
| Barreiro to Blandford Forum | 906.73 mi (1,459.24 km) |
| Barreiro to Blaydon | 1,176.78 mi (1,893.85 km) |
| Barreiro to Bletchley | 1,004.32 mi (1,616.30 km) |
| Barreiro to Bloxwich | 1,021.07 mi (1,643.26 km) |
| Barreiro to Blunsdon Saint Andrew | 960.88 mi (1,546.39 km) |
| Barreiro to Blyth | 1,190.15 mi (1,915.36 km) |
| Barreiro to Bo'ness | 1,224.77 mi (1,971.07 km) |
| Barreiro to Bodmin | 842.50 mi (1,355.88 km) |
| Barreiro to Bognor Regis | 931.54 mi (1,499.16 km) |
| Barreiro to Bolsover | 1,071.88 mi (1,725.02 km) |
| Barreiro to Bolton | 1,077.04 mi (1,733.33 km) |
| Barreiro to Bonhill | 1,214.22 mi (1,954.10 km) |
