| Gourock to Cascais | 1,210.76 mi (1,948.53 km) |
| Gourock to Castelo Branco | 1,121.66 mi (1,805.14 km) |
| Gourock to Castro Daire | 1,049.61 mi (1,689.19 km) |
| Gourock to Celorico de Basto | 1,016.87 mi (1,636.49 km) |
| Gourock to Chamusca | 1,159.42 mi (1,865.91 km) |
| Gourock to Chaves | 989.24 mi (1,592.02 km) |
| Gourock to Cinfaes | 1,037.15 mi (1,669.13 km) |
| Gourock to Coimbra | 1,100.04 mi (1,770.34 km) |
| Gourock to Condeixa-a-Nova | 1,106.99 mi (1,781.53 km) |
| Gourock to Corroios | 1,214.52 mi (1,954.58 km) |
| Gourock to Coruche | 1,186.66 mi (1,909.75 km) |
| Gourock to Costa de Caparica | 1,213.12 mi (1,952.33 km) |
| Gourock to Covilha | 1,089.57 mi (1,753.49 km) |
| Gourock to Eiras | 1,097.88 mi (1,766.87 km) |
| Gourock to Elvas | 1,185.46 mi (1,907.82 km) |
