| Gahanna to Bilecik | 5,472.22 mi (8,806.69 km) |
| Gahanna to Bingol | 5,917.58 mi (9,523.43 km) |
| Gahanna to Birecik | 5,925.78 mi (9,536.63 km) |
| Gahanna to Bitlis | 5,998.58 mi (9,653.78 km) |
| Gahanna to Bodrum | 5,520.29 mi (8,884.05 km) |
| Gahanna to Bogazliyan | 5,715.11 mi (9,197.58 km) |
| Gahanna to Bolu | 5,504.67 mi (8,858.91 km) |
| Gahanna to Bolvadin | 5,582.03 mi (8,983.41 km) |
| Gahanna to Bor | 5,756.20 mi (9,263.70 km) |
| Gahanna to Borcka | 5,825.38 mi (9,375.05 km) |
| Gahanna to Boyabat | 5,583.48 mi (8,985.75 km) |
| Gahanna to Bozdogan | 5,525.58 mi (8,892.56 km) |
| Gahanna to Bozkir | 5,702.86 mi (9,177.87 km) |
| Gahanna to Bozkurt | 5,570.17 mi (8,964.32 km) |
| Gahanna to Bozuyuk | 5,485.72 mi (8,828.41 km) |
