| Louth to Cascais | 1,107.14 mi (1,781.77 km) |
| Louth to Castelo Branco | 1,000.23 mi (1,609.71 km) |
| Louth to Castro Daire | 937.14 mi (1,508.18 km) |
| Louth to Celorico de Basto | 907.20 mi (1,460.00 km) |
| Louth to Chamusca | 1,047.70 mi (1,686.11 km) |
| Louth to Chaves | 874.34 mi (1,407.11 km) |
| Louth to Cinfaes | 927.95 mi (1,493.40 km) |
| Louth to Coimbra | 990.85 mi (1,594.62 km) |
| Louth to Condeixa-a-Nova | 998.28 mi (1,606.57 km) |
| Louth to Corroios | 1,107.66 mi (1,782.61 km) |
| Louth to Coruche | 1,074.09 mi (1,728.57 km) |
| Louth to Costa de Caparica | 1,107.30 mi (1,782.03 km) |
| Louth to Covilha | 969.64 mi (1,560.49 km) |
| Louth to Eiras | 988.75 mi (1,591.24 km) |
| Louth to Elvas | 1,057.39 mi (1,701.70 km) |
