| Castro Valley to Bitonto | 6,400.02 mi (10,299.84 km) |
| Castro Valley to Bitritto | 6,408.03 mi (10,312.72 km) |
| Castro Valley to Bollate | 5,933.68 mi (9,549.34 km) |
| Castro Valley to Bologna | 6,056.52 mi (9,747.03 km) |
| Castro Valley to Bolzano | 5,943.62 mi (9,565.33 km) |
| Castro Valley to Bomporto | 6,034.23 mi (9,711.15 km) |
| Castro Valley to Bonate di Sopra | 5,939.22 mi (9,558.25 km) |
| Castro Valley to Bondeno | 6,036.60 mi (9,714.96 km) |
| Castro Valley to Bordighera | 5,988.05 mi (9,636.84 km) |
| Castro Valley to Borgaro Torinese | 5,912.72 mi (9,515.60 km) |
| Castro Valley to Borgo a Buggiano | 6,073.49 mi (9,774.34 km) |
| Castro Valley to Borgo San Dalmazzo | 5,952.40 mi (9,579.46 km) |
| Castro Valley to Borgo San Lorenzo | 6,088.42 mi (9,798.37 km) |
| Castro Valley to Borgomanero | 5,906.55 mi (9,505.67 km) |
| Castro Valley to Borgoricco | 6,016.02 mi (9,681.85 km) |
