| Portalegre to Boekel | 1,055.99 mi (1,699.45 km) |
| Portalegre to Bolsward | 1,130.26 mi (1,818.98 km) |
| Portalegre to Borger | 1,156.05 mi (1,860.48 km) |
| Portalegre to Borne | 1,122.80 mi (1,806.98 km) |
| Portalegre to Boskoop | 1,052.97 mi (1,694.59 km) |
| Portalegre to Boxmeer | 1,066.68 mi (1,716.66 km) |
| Portalegre to Boxtel | 1,045.69 mi (1,682.87 km) |
| Portalegre to Breda | 1,030.56 mi (1,658.53 km) |
| Portalegre to Breukelen | 1,067.91 mi (1,718.64 km) |
| Portalegre to Brielle | 1,031.31 mi (1,659.73 km) |
| Portalegre to Bronkhorst | 1,095.59 mi (1,763.19 km) |
| Portalegre to Brummen | 1,094.65 mi (1,761.67 km) |
| Portalegre to Brunssum | 1,031.86 mi (1,660.62 km) |
| Portalegre to Bunnik | 1,067.58 mi (1,718.10 km) |
| Portalegre to Burgum | 1,149.50 mi (1,849.94 km) |
