| Castricum to Black Forest (Colorado) | 4,828.68 mi (7,771.01 km) |
| Castricum to Blackfoot (Idaho) | 4,836.40 mi (7,783.44 km) |
| Castricum to Blackhawk (California) | 5,419.16 mi (8,721.30 km) |
| Castricum to Blacksburg (Virginia) | 4,045.60 mi (6,510.77 km) |
| Castricum to Blackwells Mills (New Jersey) | 3,663.47 mi (5,895.78 km) |
| Castricum to Blaine (Minnesota) | 4,125.97 mi (6,640.10 km) |
| Castricum to Bloomingdale (Florida) | 4,589.25 mi (7,385.68 km) |
| Castricum to Bloomingdale (Illinois) | 4,104.57 mi (6,605.67 km) |
| Castricum to Bloomington (California) | 5,513.31 mi (8,872.81 km) |
| Castricum to Bloomington (Illinois) | 4,209.35 mi (6,774.30 km) |
| Castricum to Bloomington (Indiana) | 4,184.08 mi (6,733.63 km) |
| Castricum to Bloomington (Minnesota) | 4,146.43 mi (6,673.04 km) |
| Castricum to Bloomsburg (Pennsylvania) | 3,711.95 mi (5,973.81 km) |
| Castricum to Blue Ash (Ohio) | 4,099.34 mi (6,597.25 km) |
| Castricum to Blue Island (Illinois) | 4,104.02 mi (6,604.78 km) |
