| Dumbarton to Borgosatollo | 967.23 mi (1,556.61 km) |
| Dumbarton to Borgosesia | 898.97 mi (1,446.76 km) |
| Dumbarton to Boscoreale | 1,356.46 mi (2,183.01 km) |
| Dumbarton to Boscotrecase | 1,355.02 mi (2,180.70 km) |
| Dumbarton to Botticino Sera | 963.85 mi (1,551.17 km) |
| Dumbarton to Bovalino Marina | 1,557.35 mi (2,506.31 km) |
| Dumbarton to Boves | 962.41 mi (1,548.85 km) |
| Dumbarton to Boville Ernica | 1,276.48 mi (2,054.30 km) |
| Dumbarton to Bovisio Masciago | 928.65 mi (1,494.52 km) |
| Dumbarton to Bovolone | 1,005.66 mi (1,618.46 km) |
| Dumbarton to Bra | 947.80 mi (1,525.33 km) |
| Dumbarton to Bracciano | 1,214.62 mi (1,954.75 km) |
| Dumbarton to Brandizzo | 919.27 mi (1,479.42 km) |
| Dumbarton to Breganze | 994.04 mi (1,599.75 km) |
| Dumbarton to Brembate | 940.73 mi (1,513.96 km) |
