| Olbia to Bougival | 656.12 mi (1,055.92 km) |
| Olbia to Bouguenais | 700.40 mi (1,127.18 km) |
| Olbia to Boulogne-Billancourt | 651.75 mi (1,048.89 km) |
| Olbia to Boulogne-sur-Mer | 775.86 mi (1,248.63 km) |
| Olbia to Bourg-de-Peage | 362.75 mi (583.79 km) |
| Olbia to Bourg-en-Bresse | 423.24 mi (681.15 km) |
| Olbia to Bourg-la-Reine | 646.66 mi (1,040.70 km) |
| Olbia to Bourg-les-Valence | 362.95 mi (584.11 km) |
| Olbia to Bourges | 552.92 mi (889.83 km) |
| Olbia to Bourgoin-Jallieu | 386.29 mi (621.68 km) |
| Olbia to Bressuire | 643.30 mi (1,035.29 km) |
| Olbia to Brest | 857.70 mi (1,380.34 km) |
| Olbia to Bretigny-sur-Orge | 637.48 mi (1,025.93 km) |
| Olbia to Breuillet | 638.63 mi (1,027.77 km) |
| Olbia to Briancon | 310.77 mi (500.13 km) |
