| Gretna to Bitonto | 5,662.87 mi (9,113.51 km) |
| Gretna to Bitritto | 5,671.93 mi (9,128.09 km) |
| Gretna to Bollate | 5,180.26 mi (8,336.82 km) |
| Gretna to Bologna | 5,310.60 mi (8,546.58 km) |
| Gretna to Bolzano | 5,243.90 mi (8,439.24 km) |
| Gretna to Bomporto | 5,289.25 mi (8,512.23 km) |
| Gretna to Bonate di Sopra | 5,195.22 mi (8,360.90 km) |
| Gretna to Bondeno | 5,300.63 mi (8,530.54 km) |
| Gretna to Bordighera | 5,173.14 mi (8,325.36 km) |
| Gretna to Borgaro Torinese | 5,129.56 mi (8,255.24 km) |
| Gretna to Borgo a Buggiano | 5,304.75 mi (8,537.17 km) |
| Gretna to Borgo San Dalmazzo | 5,147.76 mi (8,284.52 km) |
| Gretna to Borgo San Lorenzo | 5,330.74 mi (8,579.00 km) |
| Gretna to Borgomanero | 5,147.61 mi (8,284.27 km) |
| Gretna to Borgoricco | 5,302.55 mi (8,533.63 km) |
