| Boulogne-Billancourt to Benevento | 809.86 mi (1,303.34 km) |
| Boulogne-Billancourt to Bergamo | 410.10 mi (659.99 km) |
| Boulogne-Billancourt to Bernalda | 915.33 mi (1,473.08 km) |
| Boulogne-Billancourt to Bertinoro | 570.43 mi (918.02 km) |
| Boulogne-Billancourt to Besana in Brianza | 394.65 mi (635.13 km) |
| Boulogne-Billancourt to Besozzo | 364.56 mi (586.71 km) |
| Boulogne-Billancourt to Biancavilla | 997.81 mi (1,605.82 km) |
| Boulogne-Billancourt to Biassono | 396.72 mi (638.46 km) |
| Boulogne-Billancourt to Bibbiano | 483.91 mi (778.77 km) |
| Boulogne-Billancourt to Bibbiena | 578.12 mi (930.40 km) |
| Boulogne-Billancourt to Biella | 354.50 mi (570.51 km) |
| Boulogne-Billancourt to Bisceglie | 869.53 mi (1,399.37 km) |
| Boulogne-Billancourt to Bisignano | 945.24 mi (1,521.22 km) |
| Boulogne-Billancourt to Bitetto | 888.69 mi (1,430.21 km) |
| Boulogne-Billancourt to Bitonto | 882.25 mi (1,419.84 km) |
