| Rockville to Bilecik | 5,293.02 mi (8,518.29 km) |
| Rockville to Bingol | 5,760.86 mi (9,271.21 km) |
| Rockville to Birecik | 5,756.41 mi (9,264.05 km) |
| Rockville to Bitlis | 5,844.78 mi (9,406.27 km) |
| Rockville to Bodrum | 5,324.96 mi (8,569.70 km) |
| Rockville to Bogazliyan | 5,545.56 mi (8,924.72 km) |
| Rockville to Bolu | 5,331.29 mi (8,579.88 km) |
| Rockville to Bolvadin | 5,400.62 mi (8,691.45 km) |
| Rockville to Bor | 5,580.71 mi (8,981.28 km) |
| Rockville to Borcka | 5,679.71 mi (9,140.61 km) |
| Rockville to Boyabat | 5,420.22 mi (8,723.00 km) |
| Rockville to Bozdogan | 5,334.34 mi (8,584.79 km) |
| Rockville to Bozkir | 5,519.38 mi (8,882.59 km) |
| Rockville to Bozkurt | 5,382.42 mi (8,662.17 km) |
| Rockville to Bozuyuk | 5,305.86 mi (8,538.96 km) |
