| Portimao to Belvedere Marittimo | 1,328.81 mi (2,138.51 km) |
| Portimao to Benevento | 1,275.88 mi (2,053.33 km) |
| Portimao to Bergamo | 1,109.48 mi (1,785.54 km) |
| Portimao to Bernalda | 1,372.49 mi (2,208.81 km) |
| Portimao to Bertinoro | 1,182.85 mi (1,903.62 km) |
| Portimao to Besana in Brianza | 1,092.88 mi (1,758.82 km) |
| Portimao to Besozzo | 1,071.22 mi (1,723.96 km) |
| Portimao to Biancavilla | 1,281.93 mi (2,063.07 km) |
| Portimao to Biassono | 1,090.11 mi (1,754.36 km) |
| Portimao to Bibbiano | 1,116.79 mi (1,797.30 km) |
| Portimao to Bibbiena | 1,158.88 mi (1,865.04 km) |
| Portimao to Biella | 1,036.46 mi (1,668.01 km) |
| Portimao to Bisceglie | 1,365.73 mi (2,197.94 km) |
| Portimao to Bisignano | 1,351.07 mi (2,174.34 km) |
| Portimao to Bitetto | 1,377.59 mi (2,217.02 km) |
