| Ada to Cividale del Friuli | 322.44 mi (518.91 km) |
| Ada to Civita Castellana | 453.25 mi (729.44 km) |
| Ada to Civitanova Marche | 359.21 mi (578.09 km) |
| Ada to Civitavecchia | 486.64 mi (783.17 km) |
| Ada to Civitella in Val di Chiana | 445.27 mi (716.60 km) |
| Ada to Clusone | 489.86 mi (788.35 km) |
| Ada to Coccaglio | 490.14 mi (788.81 km) |
| Ada to Codigoro | 395.00 mi (635.69 km) |
| Ada to Codogno | 506.77 mi (815.57 km) |
| Ada to Codroipo | 344.17 mi (553.89 km) |
| Ada to Cogoleto | 568.19 mi (914.41 km) |
| Ada to Colle di Val d'Elsa | 472.47 mi (760.37 km) |
| Ada to Colle Salvetti | 497.33 mi (800.38 km) |
| Ada to Collecchio | 487.26 mi (784.17 km) |
| Ada to Colleferro | 452.51 mi (728.25 km) |
