| Karlsruhe to Borgosesia | 227.58 mi (366.26 km) |
| Karlsruhe to Boscoreale | 642.06 mi (1,033.30 km) |
| Karlsruhe to Boscotrecase | 640.65 mi (1,031.03 km) |
| Karlsruhe to Botticino Sera | 254.99 mi (410.37 km) |
| Karlsruhe to Bovalino Marina | 843.87 mi (1,358.08 km) |
| Karlsruhe to Boves | 325.59 mi (523.99 km) |
| Karlsruhe to Boville Ernica | 564.50 mi (908.47 km) |
| Karlsruhe to Bovisio Masciago | 236.99 mi (381.39 km) |
| Karlsruhe to Bovolone | 289.65 mi (466.14 km) |
| Karlsruhe to Bra | 298.88 mi (481.01 km) |
| Karlsruhe to Bracciano | 511.03 mi (822.42 km) |
| Karlsruhe to Brandizzo | 266.14 mi (428.31 km) |
| Karlsruhe to Breganze | 272.33 mi (438.27 km) |
| Karlsruhe to Brembate | 241.59 mi (388.80 km) |
| Karlsruhe to Brescia | 254.42 mi (409.46 km) |
