| Ferentino to Cividale del Friuli | 305.30 mi (491.33 km) |
| Ferentino to Civita Castellana | 60.44 mi (97.28 km) |
| Ferentino to Civitanova Marche | 114.38 mi (184.08 km) |
| Ferentino to Civitavecchia | 79.94 mi (128.65 km) |
| Ferentino to Civitella in Val di Chiana | 142.94 mi (230.05 km) |
| Ferentino to Clusone | 333.56 mi (536.81 km) |
| Ferentino to Coccaglio | 314.01 mi (505.35 km) |
| Ferentino to Codigoro | 224.98 mi (362.08 km) |
| Ferentino to Codogno | 298.85 mi (480.95 km) |
| Ferentino to Codroipo | 295.97 mi (476.32 km) |
| Ferentino to Cogoleto | 298.27 mi (480.03 km) |
| Ferentino to Colle di Val d'Elsa | 160.24 mi (257.88 km) |
| Ferentino to Colle Salvetti | 193.14 mi (310.83 km) |
| Ferentino to Collecchio | 261.16 mi (420.29 km) |
| Ferentino to Colleferro | 12.52 mi (20.15 km) |
