| Castricum to Bountiful (Utah) | 4,953.51 mi (7,971.91 km) |
| Castricum to Bourbonnais (Illinois) | 4,134.51 mi (6,653.85 km) |
| Castricum to Bowie (Maryland) | 3,818.49 mi (6,145.27 km) |
| Castricum to Bowling Green (Kentucky) | 4,289.96 mi (6,904.03 km) |
| Castricum to Bowling Green (Ohio) | 3,968.73 mi (6,387.06 km) |
| Castricum to Box Elder (South Dakota) | 4,504.65 mi (7,249.53 km) |
| Castricum to Boynton Beach (Florida) | 4,570.36 mi (7,355.29 km) |
| Castricum to Bozeman (Montana) | 4,659.69 mi (7,499.05 km) |
| Castricum to Bradenton (Florida) | 4,622.05 mi (7,438.47 km) |
| Castricum to Bradfordville (Florida) | 4,528.16 mi (7,287.36 km) |
| Castricum to Bradley (Illinois) | 4,134.22 mi (6,653.39 km) |
| Castricum to Bradley Gardens (New Jersey) | 3,661.92 mi (5,893.30 km) |
| Castricum to Brainerd (Minnesota) | 4,100.63 mi (6,599.32 km) |
| Castricum to Brambleton (Virginia) | 3,848.36 mi (6,193.33 km) |
| Castricum to Brandermill (Virginia) | 3,926.71 mi (6,319.43 km) |
