| Gretna to Brie-Comte-Robert | 4,811.36 mi (7,743.14 km) |
| Gretna to Brignais | 4,987.38 mi (8,026.41 km) |
| Gretna to Brignoles | 5,113.13 mi (8,228.78 km) |
| Gretna to Brive-la-Gaillarde | 4,859.03 mi (7,819.86 km) |
| Gretna to Bron | 4,992.46 mi (8,034.59 km) |
| Gretna to Bruay-sur-l'Escaut | 4,804.58 mi (7,732.23 km) |
| Gretna to Bruges | 4,769.49 mi (7,675.75 km) |
| Gretna to Brumath | 5,022.16 mi (8,082.38 km) |
| Gretna to Brunoy | 4,806.72 mi (7,735.68 km) |
| Gretna to Bruz | 4,641.65 mi (7,470.01 km) |
| Gretna to Bry-sur-Marne | 4,803.70 mi (7,730.80 km) |
| Gretna to Bully-les-Mines | 4,770.24 mi (7,676.96 km) |
| Gretna to Bures-sur-Yvette | 4,792.29 mi (7,712.45 km) |
| Gretna to Bussy-Saint-Georges | 4,811.07 mi (7,742.66 km) |
| Gretna to Buxerolles | 4,768.49 mi (7,674.15 km) |
