| Gretna to Bonhill | 4,363.99 mi (7,023.17 km) |
| Gretna to Bonnyrigg | 4,420.66 mi (7,114.37 km) |
| Gretna to Bootle | 4,471.85 mi (7,196.75 km) |
| Gretna to Borehamwood | 4,618.77 mi (7,433.20 km) |
| Gretna to Boscombe | 4,575.77 mi (7,363.98 km) |
| Gretna to Boston | 4,598.71 mi (7,400.90 km) |
| Gretna to Bottesford | 4,560.42 mi (7,339.28 km) |
| Gretna to Bourne | 4,589.30 mi (7,385.77 km) |
| Gretna to Bournemouth | 4,574.22 mi (7,361.50 km) |
| Gretna to Bournville | 4,534.70 mi (7,297.90 km) |
| Gretna to Bovingdon | 4,606.59 mi (7,413.60 km) |
| Gretna to Bowdon | 4,497.80 mi (7,238.51 km) |
| Gretna to Boxley | 4,660.10 mi (7,499.71 km) |
| Gretna to Brackley | 4,575.03 mi (7,362.80 km) |
| Gretna to Bracknell | 4,604.99 mi (7,411.01 km) |
