| Formia to Bombarral | 1,204.97 mi (1,939.22 km) |
| Formia to Bougado | 1,147.90 mi (1,847.37 km) |
| Formia to Braga | 1,139.02 mi (1,833.08 km) |
| Formia to Braganca | 1,051.99 mi (1,693.01 km) |
| Formia to Cabeceiras de Basto | 1,118.42 mi (1,799.93 km) |
| Formia to Cacem | 1,221.61 mi (1,965.99 km) |
| Formia to Cadaval | 1,202.68 mi (1,935.53 km) |
| Formia to Caldas da Rainha | 1,201.69 mi (1,933.93 km) |
| Formia to Calheta | 1,787.10 mi (2,876.06 km) |
| Formia to Camara de Lobos | 1,778.48 mi (2,862.19 km) |
| Formia to Canico | 1,773.71 mi (2,854.52 km) |
| Formia to Cantanhede | 1,160.16 mi (1,867.09 km) |
| Formia to Carregal do Sal | 1,128.32 mi (1,815.86 km) |
| Formia to Cartaxo | 1,187.64 mi (1,911.32 km) |
| Formia to Cascais | 1,228.55 mi (1,977.16 km) |
