| Troisdorf to Castelo Branco | 1,037.72 mi (1,670.04 km) |
| Troisdorf to Castro Daire | 994.73 mi (1,600.87 km) |
| Troisdorf to Celorico de Basto | 972.28 mi (1,564.74 km) |
| Troisdorf to Chamusca | 1,095.48 mi (1,763.01 km) |
| Troisdorf to Chaves | 935.60 mi (1,505.70 km) |
| Troisdorf to Cinfaes | 991.39 mi (1,595.49 km) |
| Troisdorf to Coimbra | 1,047.75 mi (1,686.19 km) |
| Troisdorf to Condeixa-a-Nova | 1,055.14 mi (1,698.08 km) |
| Troisdorf to Corroios | 1,157.58 mi (1,862.94 km) |
| Troisdorf to Coruche | 1,118.28 mi (1,799.70 km) |
| Troisdorf to Costa de Caparica | 1,158.77 mi (1,864.86 km) |
| Troisdorf to Covilha | 1,012.53 mi (1,629.51 km) |
| Troisdorf to Eiras | 1,045.94 mi (1,683.28 km) |
| Troisdorf to Elvas | 1,079.12 mi (1,736.67 km) |
| Troisdorf to Entroncamento | 1,088.76 mi (1,752.19 km) |
