| Frosinone to Cividale del Friuli | 308.65 mi (496.72 km) |
| Frosinone to Civita Castellana | 66.55 mi (107.11 km) |
| Frosinone to Civitanova Marche | 116.80 mi (187.98 km) |
| Frosinone to Civitavecchia | 86.02 mi (138.44 km) |
| Frosinone to Civitella in Val di Chiana | 148.65 mi (239.24 km) |
| Frosinone to Clusone | 339.06 mi (545.67 km) |
| Frosinone to Coccaglio | 319.61 mi (514.36 km) |
| Frosinone to Codigoro | 229.64 mi (369.57 km) |
| Frosinone to Codogno | 304.66 mi (490.30 km) |
| Frosinone to Codroipo | 299.69 mi (482.30 km) |
| Frosinone to Cogoleto | 304.45 mi (489.96 km) |
| Frosinone to Colle di Val d'Elsa | 166.25 mi (267.56 km) |
| Frosinone to Colle Salvetti | 199.25 mi (320.67 km) |
| Frosinone to Collecchio | 266.94 mi (429.61 km) |
| Frosinone to Colleferro | 18.53 mi (29.83 km) |
