| Formia to Castelo Branco | 1,110.52 mi (1,787.21 km) |
| Formia to Castro Daire | 1,119.71 mi (1,802.00 km) |
| Formia to Celorico de Basto | 1,118.74 mi (1,800.44 km) |
| Formia to Chamusca | 1,168.73 mi (1,880.89 km) |
| Formia to Chaves | 1,088.96 mi (1,752.51 km) |
| Formia to Cinfaes | 1,128.09 mi (1,815.49 km) |
| Formia to Coimbra | 1,153.33 mi (1,856.11 km) |
| Formia to Condeixa-a-Nova | 1,158.25 mi (1,864.02 km) |
| Formia to Corroios | 1,216.34 mi (1,957.52 km) |
| Formia to Coruche | 1,177.68 mi (1,895.28 km) |
| Formia to Costa de Caparica | 1,220.18 mi (1,963.69 km) |
| Formia to Covilha | 1,104.25 mi (1,777.12 km) |
| Formia to Eiras | 1,152.66 mi (1,855.03 km) |
| Formia to Elvas | 1,107.80 mi (1,782.83 km) |
| Formia to Entroncamento | 1,166.09 mi (1,876.65 km) |
