| Catonsville to Blumberg | 4,090.79 mi (6,583.50 km) |
| Catonsville to Bobenheim-Roxheim | 4,031.68 mi (6,488.37 km) |
| Catonsville to Bobingen | 4,171.81 mi (6,713.89 km) |
| Catonsville to Boblingen | 4,085.07 mi (6,574.28 km) |
| Catonsville to Bocholt | 3,899.07 mi (6,274.94 km) |
| Catonsville to Bochum | 3,932.18 mi (6,328.23 km) |
| Catonsville to Bockenem | 4,031.27 mi (6,487.71 km) |
| Catonsville to Bockhorn | 3,911.68 mi (6,295.23 km) |
| Catonsville to Bogen | 4,226.70 mi (6,802.22 km) |
| Catonsville to Bohl-Iggelheim | 4,035.77 mi (6,494.94 km) |
| Catonsville to Bohmte | 3,951.07 mi (6,358.63 km) |
| Catonsville to Boizenburg | 4,014.66 mi (6,460.96 km) |
| Catonsville to Bonen | 3,950.42 mi (6,357.58 km) |
| Catonsville to Bonn | 3,948.12 mi (6,353.88 km) |
| Catonsville to Bopfingen | 4,134.44 mi (6,653.74 km) |
