| Castro Valley to Bingen am Rhein | 5,656.45 mi (9,103.18 km) |
| Castro Valley to Birkenau | 5,700.60 mi (9,174.23 km) |
| Castro Valley to Birkenfeld | 5,736.73 mi (9,232.38 km) |
| Castro Valley to Bischofsheim | 5,667.57 mi (9,121.07 km) |
| Castro Valley to Bischofswerda | 5,751.83 mi (9,256.67 km) |
| Castro Valley to Bisingen | 5,775.25 mi (9,294.36 km) |
| Castro Valley to Bissendorf | 5,539.77 mi (8,915.41 km) |
| Castro Valley to Bitburg | 5,618.85 mi (9,042.67 km) |
| Castro Valley to Bitterfeld | 5,678.78 mi (9,139.11 km) |
| Castro Valley to Blankenburg | 5,635.20 mi (9,068.98 km) |
| Castro Valley to Blankenfelde | 5,663.07 mi (9,113.83 km) |
| Castro Valley to Blaubeuren | 5,793.47 mi (9,323.68 km) |
| Castro Valley to Bleicherode | 5,646.44 mi (9,087.06 km) |
| Castro Valley to Blieskastel | 5,678.49 mi (9,138.65 km) |
| Castro Valley to Blomberg | 5,579.90 mi (8,979.98 km) |
