| Grosseto to Cividale del Friuli | 257.45 mi (414.32 km) |
| Grosseto to Civita Castellana | 74.20 mi (119.42 km) |
| Grosseto to Civitanova Marche | 138.00 mi (222.08 km) |
| Grosseto to Civitavecchia | 58.28 mi (93.79 km) |
| Grosseto to Civitella in Val di Chiana | 54.64 mi (87.93 km) |
| Grosseto to Clusone | 222.71 mi (358.41 km) |
| Grosseto to Coccaglio | 201.06 mi (323.57 km) |
| Grosseto to Codigoro | 151.52 mi (243.85 km) |
| Grosseto to Codogno | 179.32 mi (288.58 km) |
| Grosseto to Codroipo | 239.51 mi (385.45 km) |
| Grosseto to Cogoleto | 166.29 mi (267.62 km) |
| Grosseto to Colle di Val d'Elsa | 43.79 mi (70.47 km) |
| Grosseto to Colle Salvetti | 65.42 mi (105.29 km) |
| Grosseto to Collecchio | 143.95 mi (231.66 km) |
| Grosseto to Colleferro | 121.27 mi (195.16 km) |
