| Gretna to Bastogne | 4,903.90 mi (7,892.07 km) |
| Gretna to Beauraing | 4,870.01 mi (7,837.52 km) |
| Gretna to Beernem | 4,776.97 mi (7,687.79 km) |
| Gretna to Beerse | 4,833.26 mi (7,778.37 km) |
| Gretna to Beersel | 4,825.94 mi (7,766.60 km) |
| Gretna to Begijnendijk | 4,838.11 mi (7,786.19 km) |
| Gretna to Beloeil | 4,808.19 mi (7,738.04 km) |
| Gretna to Berchem | 4,818.95 mi (7,755.36 km) |
| Gretna to Beringen | 4,854.93 mi (7,813.26 km) |
| Gretna to Berlaar | 4,830.06 mi (7,773.23 km) |
| Gretna to Berlare | 4,806.63 mi (7,735.52 km) |
| Gretna to Bernissart | 4,806.82 mi (7,735.83 km) |
| Gretna to Bertem | 4,835.97 mi (7,782.73 km) |
| Gretna to Bertrix | 4,889.17 mi (7,868.36 km) |
| Gretna to Beveren | 4,811.85 mi (7,743.93 km) |
