| Grammichele to Cividale del Friuli | 617.03 mi (993.01 km) |
| Grammichele to Civita Castellana | 370.43 mi (596.16 km) |
| Grammichele to Civitanova Marche | 423.13 mi (680.97 km) |
| Grammichele to Civitavecchia | 369.67 mi (594.92 km) |
| Grammichele to Civitella in Val di Chiana | 455.20 mi (732.58 km) |
| Grammichele to Clusone | 645.80 mi (1,039.32 km) |
| Grammichele to Coccaglio | 625.04 mi (1,005.91 km) |
| Grammichele to Codigoro | 542.45 mi (873.00 km) |
| Grammichele to Codogno | 605.60 mi (974.62 km) |
| Grammichele to Codroipo | 610.41 mi (982.36 km) |
| Grammichele to Cogoleto | 586.04 mi (943.15 km) |
| Grammichele to Colle di Val d'Elsa | 465.40 mi (748.99 km) |
| Grammichele to Colle Salvetti | 492.16 mi (792.05 km) |
| Grammichele to Collecchio | 569.16 mi (915.98 km) |
| Grammichele to Colleferro | 323.92 mi (521.29 km) |
