| Catonsville to Belvedere Marittimo | 4,690.60 mi (7,548.79 km) |
| Catonsville to Benevento | 4,585.82 mi (7,380.17 km) |
| Catonsville to Bergamo | 4,205.84 mi (6,768.64 km) |
| Catonsville to Bernalda | 4,696.18 mi (7,557.76 km) |
| Catonsville to Bertinoro | 4,362.86 mi (7,021.35 km) |
| Catonsville to Besana in Brianza | 4,189.15 mi (6,741.79 km) |
| Catonsville to Besozzo | 4,158.00 mi (6,691.66 km) |
| Catonsville to Biancavilla | 4,720.61 mi (7,597.08 km) |
| Catonsville to Biassono | 4,190.58 mi (6,744.08 km) |
| Catonsville to Bibbiano | 4,273.65 mi (6,877.78 km) |
| Catonsville to Bibbiena | 4,364.66 mi (7,024.24 km) |
| Catonsville to Biella | 4,141.15 mi (6,664.53 km) |
| Catonsville to Bisceglie | 4,657.03 mi (7,494.76 km) |
| Catonsville to Bisignano | 4,712.91 mi (7,584.70 km) |
| Catonsville to Bitetto | 4,675.62 mi (7,524.68 km) |
