| Catonsville to Borgosatollo | 4,237.27 mi (6,819.23 km) |
| Catonsville to Borgosesia | 4,145.04 mi (6,670.80 km) |
| Catonsville to Boscoreale | 4,586.15 mi (7,380.70 km) |
| Catonsville to Boscotrecase | 4,584.80 mi (7,378.53 km) |
| Catonsville to Botticino Sera | 4,235.12 mi (6,815.77 km) |
| Catonsville to Bovalino Marina | 4,760.27 mi (7,660.91 km) |
| Catonsville to Boves | 4,157.62 mi (6,691.04 km) |
| Catonsville to Boville Ernica | 4,509.02 mi (7,256.57 km) |
| Catonsville to Bovisio Masciago | 4,186.11 mi (6,736.90 km) |
| Catonsville to Bovolone | 4,282.84 mi (6,892.56 km) |
| Catonsville to Bra | 4,159.10 mi (6,693.43 km) |
| Catonsville to Bracciano | 4,436.43 mi (7,139.75 km) |
| Catonsville to Brandizzo | 4,143.52 mi (6,668.35 km) |
| Catonsville to Breganze | 4,286.26 mi (6,898.07 km) |
| Catonsville to Brembate | 4,203.77 mi (6,765.31 km) |
