| Biga to Quarteira | 1,907.04 mi (3,069.09 km) |
| Biga to Queluz | 1,935.62 mi (3,115.08 km) |
| Biga to Reguengos de Monsaraz | 1,851.06 mi (2,979.00 km) |
| Biga to Resende | 1,833.46 mi (2,950.66 km) |
| Biga to Ribeira Brava | 2,489.43 mi (4,006.36 km) |
| Biga to Ribeira Grande | 2,794.77 mi (4,497.75 km) |
| Biga to Rio de Mouro | 1,938.76 mi (3,120.14 km) |
| Biga to Rio Maior | 1,908.45 mi (3,071.35 km) |
| Biga to Rio Tinto | 1,863.15 mi (2,998.45 km) |
| Biga to Sabugal | 1,797.57 mi (2,892.91 km) |
| Biga to Sacavem | 1,926.47 mi (3,100.35 km) |
| Biga to Salvaterra de Magos | 1,905.88 mi (3,067.23 km) |
| Biga to Santa Comba Dao | 1,850.27 mi (2,977.72 km) |
| Biga to Santa Cruz | 2,476.26 mi (3,985.15 km) |
| Biga to Santa Iria da Azoia | 1,924.67 mi (3,097.46 km) |
