| Niagara Falls to Bilecik | 5,182.27 mi (8,340.05 km) |
| Niagara Falls to Bingol | 5,627.02 mi (9,055.82 km) |
| Niagara Falls to Birecik | 5,635.25 mi (9,069.06 km) |
| Niagara Falls to Bitlis | 5,708.11 mi (9,186.32 km) |
| Niagara Falls to Bodrum | 5,232.23 mi (8,420.46 km) |
| Niagara Falls to Bogazliyan | 5,424.60 mi (8,730.05 km) |
| Niagara Falls to Bolu | 5,214.34 mi (8,391.67 km) |
| Niagara Falls to Bolvadin | 5,292.24 mi (8,517.04 km) |
| Niagara Falls to Bor | 5,465.95 mi (8,796.59 km) |
| Niagara Falls to Borcka | 5,535.31 mi (8,908.22 km) |
| Niagara Falls to Boyabat | 5,292.86 mi (8,518.03 km) |
| Niagara Falls to Bozdogan | 5,236.91 mi (8,427.99 km) |
| Niagara Falls to Bozkir | 5,413.23 mi (8,711.76 km) |
| Niagara Falls to Bozkurt | 5,281.03 mi (8,499.00 km) |
| Niagara Falls to Bozuyuk | 5,195.82 mi (8,361.86 km) |
