| Constanta to Bougival | 1,293.60 mi (2,081.85 km) |
| Constanta to Bouguenais | 1,466.04 mi (2,359.37 km) |
| Constanta to Boulogne-Billancourt | 1,288.84 mi (2,074.18 km) |
| Constanta to Boulogne-sur-Mer | 1,332.38 mi (2,144.25 km) |
| Constanta to Bourg-de-Peage | 1,157.62 mi (1,863.01 km) |
| Constanta to Bourg-en-Bresse | 1,144.18 mi (1,841.38 km) |
| Constanta to Bourg-la-Reine | 1,285.17 mi (2,068.29 km) |
| Constanta to Bourg-les-Valence | 1,165.75 mi (1,876.09 km) |
| Constanta to Bourges | 1,277.50 mi (2,055.93 km) |
| Constanta to Bourgoin-Jallieu | 1,143.85 mi (1,840.85 km) |
| Constanta to Bressuire | 1,414.01 mi (2,275.64 km) |
| Constanta to Brest | 1,595.49 mi (2,567.69 km) |
| Constanta to Bretigny-sur-Orge | 1,284.75 mi (2,067.61 km) |
| Constanta to Breuillet | 1,290.68 mi (2,077.14 km) |
| Constanta to Briancon | 1,081.36 mi (1,740.29 km) |
