| Castro Valley to Brie-Comte-Robert | 5,572.79 mi (8,968.54 km) |
| Castro Valley to Brignais | 5,796.82 mi (9,329.08 km) |
| Castro Valley to Brignoles | 5,959.06 mi (9,590.19 km) |
| Castro Valley to Brive-la-Gaillarde | 5,722.18 mi (9,208.96 km) |
| Castro Valley to Bron | 5,798.23 mi (9,331.35 km) |
| Castro Valley to Bruay-sur-l'Escaut | 5,511.21 mi (8,869.43 km) |
| Castro Valley to Bruges | 5,665.78 mi (9,118.19 km) |
| Castro Valley to Brumath | 5,718.59 mi (9,203.18 km) |
| Castro Valley to Brunoy | 5,569.30 mi (8,962.92 km) |
| Castro Valley to Bruz | 5,471.18 mi (8,805.01 km) |
| Castro Valley to Bry-sur-Marne | 5,562.40 mi (8,951.82 km) |
| Castro Valley to Bully-les-Mines | 5,485.35 mi (8,827.82 km) |
| Castro Valley to Bures-sur-Yvette | 5,559.01 mi (8,946.36 km) |
| Castro Valley to Bussy-Saint-Georges | 5,567.63 mi (8,960.23 km) |
| Castro Valley to Buxerolles | 5,610.24 mi (9,028.81 km) |
