| Porvoo to Bonnyrigg | 1,084.86 mi (1,745.91 km) |
| Porvoo to Bootle | 1,170.27 mi (1,883.37 km) |
| Porvoo to Borehamwood | 1,157.89 mi (1,863.44 km) |
| Porvoo to Boscombe | 1,251.46 mi (2,014.03 km) |
| Porvoo to Boston | 1,091.51 mi (1,756.61 km) |
| Porvoo to Bottesford | 1,088.78 mi (1,752.22 km) |
| Porvoo to Bourne | 1,111.97 mi (1,789.54 km) |
| Porvoo to Bournemouth | 1,252.98 mi (2,016.48 km) |
| Porvoo to Bournville | 1,177.66 mi (1,895.26 km) |
| Porvoo to Bovingdon | 1,163.42 mi (1,872.34 km) |
| Porvoo to Bowdon | 1,152.27 mi (1,854.41 km) |
| Porvoo to Boxley | 1,148.36 mi (1,848.10 km) |
| Porvoo to Brackley | 1,169.29 mi (1,881.79 km) |
| Porvoo to Bracknell | 1,184.30 mi (1,905.94 km) |
| Porvoo to Bradford | 1,114.69 mi (1,793.92 km) |
