| Middle Island to Benavente | 3,322.68 mi (5,347.34 km) |
| Middle Island to Bombarral | 3,296.87 mi (5,305.79 km) |
| Middle Island to Bougado | 3,270.50 mi (5,263.36 km) |
| Middle Island to Braga | 3,271.67 mi (5,265.24 km) |
| Middle Island to Braganca | 3,344.41 mi (5,382.31 km) |
| Middle Island to Cabeceiras de Basto | 3,291.45 mi (5,297.08 km) |
| Middle Island to Cacem | 3,303.19 mi (5,315.96 km) |
| Middle Island to Cadaval | 3,300.54 mi (5,311.70 km) |
| Middle Island to Caldas da Rainha | 3,293.99 mi (5,301.17 km) |
| Middle Island to Calheta | 3,084.29 mi (4,963.68 km) |
| Middle Island to Camara de Lobos | 3,094.95 mi (4,980.85 km) |
| Middle Island to Canico | 3,103.27 mi (4,994.23 km) |
| Middle Island to Cantanhede | 3,294.92 mi (5,302.66 km) |
| Middle Island to Carregal do Sal | 3,321.38 mi (5,345.24 km) |
| Middle Island to Cartaxo | 3,318.38 mi (5,340.42 km) |
