| Alenquer to Cividale del Friuli | 1,236.33 mi (1,989.68 km) |
| Alenquer to Civita Castellana | 1,141.79 mi (1,837.53 km) |
| Alenquer to Civitanova Marche | 1,214.88 mi (1,955.16 km) |
| Alenquer to Civitavecchia | 1,109.68 mi (1,785.86 km) |
| Alenquer to Civitella in Val di Chiana | 1,115.46 mi (1,795.16 km) |
| Alenquer to Clusone | 1,072.20 mi (1,725.54 km) |
| Alenquer to Coccaglio | 1,066.37 mi (1,716.15 km) |
| Alenquer to Codigoro | 1,153.21 mi (1,855.91 km) |
| Alenquer to Codogno | 1,045.24 mi (1,682.16 km) |
| Alenquer to Codroipo | 1,212.81 mi (1,951.84 km) |
| Alenquer to Cogoleto | 980.25 mi (1,577.56 km) |
| Alenquer to Colle di Val d'Elsa | 1,086.35 mi (1,748.31 km) |
| Alenquer to Colle Salvetti | 1,056.63 mi (1,700.48 km) |
| Alenquer to Collecchio | 1,061.40 mi (1,708.17 km) |
| Alenquer to Colleferro | 1,170.89 mi (1,884.37 km) |
