| Arouca to Cividale del Friuli | 1,139.09 mi (1,833.18 km) |
| Arouca to Civita Castellana | 1,068.45 mi (1,719.51 km) |
| Arouca to Civitanova Marche | 1,134.86 mi (1,826.38 km) |
| Arouca to Civitavecchia | 1,037.74 mi (1,670.09 km) |
| Arouca to Civitella in Val di Chiana | 1,033.84 mi (1,663.80 km) |
| Arouca to Clusone | 972.52 mi (1,565.12 km) |
| Arouca to Coccaglio | 968.71 mi (1,558.99 km) |
| Arouca to Codigoro | 1,062.34 mi (1,709.68 km) |
| Arouca to Codogno | 949.86 mi (1,528.66 km) |
| Arouca to Codroipo | 1,115.94 mi (1,795.93 km) |
| Arouca to Cogoleto | 888.98 mi (1,430.68 km) |
| Arouca to Colle di Val d'Elsa | 1,004.53 mi (1,616.64 km) |
| Arouca to Colle Salvetti | 972.94 mi (1,565.80 km) |
| Arouca to Collecchio | 969.34 mi (1,560.01 km) |
| Arouca to Colleferro | 1,101.64 mi (1,772.92 km) |
