| Gloucester to Bilecik | 1,726.11 mi (2,777.91 km) |
| Gloucester to Bingol | 2,220.50 mi (3,573.55 km) |
| Gloucester to Birecik | 2,195.78 mi (3,533.77 km) |
| Gloucester to Bitlis | 2,309.40 mi (3,716.63 km) |
| Gloucester to Bodrum | 1,766.49 mi (2,842.90 km) |
| Gloucester to Bogazliyan | 1,985.89 mi (3,195.98 km) |
| Gloucester to Bolu | 1,768.44 mi (2,846.03 km) |
| Gloucester to Bolvadin | 1,833.04 mi (2,949.99 km) |
| Gloucester to Bor | 2,015.29 mi (3,243.29 km) |
| Gloucester to Borcka | 2,169.13 mi (3,490.88 km) |
| Gloucester to Boyabat | 1,871.50 mi (3,011.89 km) |
| Gloucester to Bozdogan | 1,770.81 mi (2,849.85 km) |
| Gloucester to Bozkir | 1,951.79 mi (3,141.10 km) |
| Gloucester to Bozkurt | 1,816.20 mi (2,922.90 km) |
| Gloucester to Bozuyuk | 1,738.70 mi (2,798.17 km) |
