| Grammichele to Cortona | 441.38 mi (710.33 km) |
| Grammichele to Cosenza | 168.58 mi (271.31 km) |
| Grammichele to Cossato | 666.90 mi (1,073.27 km) |
| Grammichele to Costa Volpino | 639.62 mi (1,029.36 km) |
| Grammichele to Creazzo | 597.42 mi (961.46 km) |
| Grammichele to Crema | 618.85 mi (995.95 km) |
| Grammichele to Cremona | 596.94 mi (960.68 km) |
| Grammichele to Crevalcore | 549.18 mi (883.82 km) |
| Grammichele to Crispiano | 272.37 mi (438.34 km) |
| Grammichele to Crosia | 199.28 mi (320.71 km) |
| Grammichele to Crotone | 186.62 mi (300.33 km) |
| Grammichele to Cuneo | 618.10 mi (994.74 km) |
| Grammichele to Cuorgne | 670.63 mi (1,079.27 km) |
| Grammichele to Cusano Milanino | 641.17 mi (1,031.86 km) |
| Grammichele to Cutro | 178.99 mi (288.05 km) |
