| Harrow to Benavente | 962.26 mi (1,548.61 km) |
| Harrow to Bombarral | 950.51 mi (1,529.69 km) |
| Harrow to Bougado | 807.53 mi (1,299.60 km) |
| Harrow to Braga | 791.13 mi (1,273.20 km) |
| Harrow to Braganca | 740.03 mi (1,190.96 km) |
| Harrow to Cabeceiras de Basto | 783.21 mi (1,260.45 km) |
| Harrow to Cacem | 985.33 mi (1,585.73 km) |
| Harrow to Cadaval | 951.53 mi (1,531.34 km) |
| Harrow to Caldas da Rainha | 941.29 mi (1,514.85 km) |
| Harrow to Calheta | 1,553.75 mi (2,500.52 km) |
| Harrow to Camara de Lobos | 1,550.50 mi (2,495.30 km) |
| Harrow to Canico | 1,550.37 mi (2,495.08 km) |
| Harrow to Cantanhede | 870.33 mi (1,400.67 km) |
| Harrow to Carregal do Sal | 852.37 mi (1,371.75 km) |
| Harrow to Cartaxo | 950.21 mi (1,529.22 km) |
