| Gahanna to Bougival | 4,015.19 mi (6,461.82 km) |
| Gahanna to Bouguenais | 3,908.42 mi (6,289.99 km) |
| Gahanna to Boulogne-Billancourt | 4,020.24 mi (6,469.94 km) |
| Gahanna to Boulogne-sur-Mer | 3,938.95 mi (6,339.13 km) |
| Gahanna to Bourg-de-Peage | 4,260.05 mi (6,855.89 km) |
| Gahanna to Bourg-en-Bresse | 4,228.01 mi (6,804.33 km) |
| Gahanna to Bourg-la-Reine | 4,024.96 mi (6,477.55 km) |
| Gahanna to Bourg-les-Valence | 4,256.56 mi (6,850.27 km) |
| Gahanna to Bourges | 4,080.92 mi (6,567.60 km) |
| Gahanna to Bourgoin-Jallieu | 4,250.84 mi (6,841.06 km) |
| Gahanna to Bressuire | 3,966.63 mi (6,383.68 km) |
| Gahanna to Brest | 3,752.79 mi (6,039.54 km) |
| Gahanna to Bretigny-sur-Orge | 4,029.72 mi (6,485.21 km) |
| Gahanna to Breuillet | 4,025.59 mi (6,478.57 km) |
| Gahanna to Briancon | 4,332.04 mi (6,971.74 km) |
