| Gretna to Ayr | 4,370.76 mi (7,034.07 km) |
| Gretna to Bacup | 4,497.62 mi (7,238.22 km) |
| Gretna to Baguley | 4,500.87 mi (7,243.45 km) |
| Gretna to Baildon | 4,511.58 mi (7,260.68 km) |
| Gretna to Bailleston | 4,383.31 mi (7,054.25 km) |
| Gretna to Balderton | 4,567.35 mi (7,350.43 km) |
| Gretna to Baldock | 4,614.45 mi (7,426.23 km) |
| Gretna to Balham | 4,628.59 mi (7,448.99 km) |
| Gretna to Bamber Bridge | 4,479.09 mi (7,208.40 km) |
| Gretna to Banbridge | 4,327.02 mi (6,963.66 km) |
| Gretna to Banbury | 4,566.78 mi (7,349.53 km) |
| Gretna to Bangor | 4,344.63 mi (6,992.01 km) |
| Gretna to Bangor | 4,431.04 mi (7,131.07 km) |
| Gretna to Banstead | 4,629.32 mi (7,450.17 km) |
| Gretna to Bargoed | 4,497.45 mi (7,237.95 km) |
