| Signa to Cividale del Friuli | 196.56 mi (316.33 km) |
| Signa to Civita Castellana | 122.20 mi (196.67 km) |
| Signa to Civitanova Marche | 136.04 mi (218.94 km) |
| Signa to Civitavecchia | 121.57 mi (195.65 km) |
| Signa to Civitella in Val di Chiana | 39.92 mi (64.25 km) |
| Signa to Clusone | 155.65 mi (250.49 km) |
| Signa to Coccaglio | 134.77 mi (216.89 km) |
| Signa to Codigoro | 88.26 mi (142.04 km) |
| Signa to Codogno | 117.38 mi (188.90 km) |
| Signa to Codroipo | 176.45 mi (283.96 km) |
| Signa to Cogoleto | 128.78 mi (207.25 km) |
| Signa to Colle di Val d'Elsa | 26.54 mi (42.71 km) |
| Signa to Colle Salvetti | 33.31 mi (53.61 km) |
| Signa to Collecchio | 79.82 mi (128.46 km) |
| Signa to Colleferro | 171.79 mi (276.47 km) |
