| Mainz to Castelo Branco | 1,039.60 mi (1,673.07 km) |
| Mainz to Castro Daire | 1,001.63 mi (1,611.97 km) |
| Mainz to Celorico de Basto | 981.16 mi (1,579.03 km) |
| Mainz to Chamusca | 1,098.73 mi (1,768.23 km) |
| Mainz to Chaves | 944.34 mi (1,519.77 km) |
| Mainz to Cinfaes | 999.59 mi (1,608.69 km) |
| Mainz to Coimbra | 1,053.64 mi (1,695.68 km) |
| Mainz to Condeixa-a-Nova | 1,060.91 mi (1,707.38 km) |
| Mainz to Corroios | 1,160.45 mi (1,867.56 km) |
| Mainz to Coruche | 1,120.44 mi (1,803.17 km) |
| Mainz to Costa de Caparica | 1,161.96 mi (1,870.00 km) |
| Mainz to Covilha | 1,015.98 mi (1,635.06 km) |
| Mainz to Eiras | 1,051.93 mi (1,692.91 km) |
| Mainz to Elvas | 1,076.98 mi (1,733.22 km) |
| Mainz to Entroncamento | 1,092.32 mi (1,757.92 km) |
