| Catonsville to Ayr | 3,385.04 mi (5,447.70 km) |
| Catonsville to Bacup | 3,508.84 mi (5,646.94 km) |
| Catonsville to Baguley | 3,511.50 mi (5,651.21 km) |
| Catonsville to Baildon | 3,523.23 mi (5,670.10 km) |
| Catonsville to Bailleston | 3,398.80 mi (5,469.84 km) |
| Catonsville to Balderton | 3,577.86 mi (5,758.01 km) |
| Catonsville to Baldock | 3,623.50 mi (5,831.46 km) |
| Catonsville to Balham | 3,636.97 mi (5,853.13 km) |
| Catonsville to Bamber Bridge | 3,490.21 mi (5,616.94 km) |
| Catonsville to Banbridge | 3,338.26 mi (5,372.40 km) |
| Catonsville to Banbury | 3,575.62 mi (5,754.40 km) |
| Catonsville to Bangor | 3,356.70 mi (5,402.08 km) |
| Catonsville to Bangor | 3,440.84 mi (5,537.50 km) |
| Catonsville to Banstead | 3,637.55 mi (5,854.07 km) |
| Catonsville to Bargoed | 3,505.41 mi (5,641.42 km) |
