| Mablethorpe to Bonhill | 265.50 mi (427.29 km) |
| Mablethorpe to Bonnyrigg | 220.79 mi (355.33 km) |
| Mablethorpe to Bootle | 134.09 mi (215.80 km) |
| Mablethorpe to Borehamwood | 118.43 mi (190.60 km) |
| Mablethorpe to Boscombe | 201.58 mi (324.41 km) |
| Mablethorpe to Boston | 27.92 mi (44.93 km) |
| Mablethorpe to Bottesford | 41.05 mi (66.06 km) |
| Mablethorpe to Bourne | 47.62 mi (76.64 km) |
| Mablethorpe to Bournemouth | 202.65 mi (326.13 km) |
| Mablethorpe to Bournville | 111.11 mi (178.82 km) |
| Mablethorpe to Bovingdon | 116.70 mi (187.81 km) |
| Mablethorpe to Bowdon | 108.35 mi (174.37 km) |
| Mablethorpe to Boxley | 141.35 mi (227.48 km) |
| Mablethorpe to Brackley | 107.96 mi (173.74 km) |
| Mablethorpe to Bracknell | 139.65 mi (224.74 km) |
