| Gragnano to Collegno | 463.59 mi (746.08 km) |
| Gragnano to Cologno al Serio | 415.74 mi (669.06 km) |
| Gragnano to Cologno Monzese | 425.57 mi (684.89 km) |
| Gragnano to Colorno | 359.87 mi (579.16 km) |
| Gragnano to Comacchio | 300.91 mi (484.27 km) |
| Gragnano to Comiso | 258.84 mi (416.57 km) |
| Gragnano to Como | 446.45 mi (718.50 km) |
| Gragnano to Concordia Sagittaria | 360.24 mi (579.75 km) |
| Gragnano to Concorezzo | 427.03 mi (687.23 km) |
| Gragnano to Conegliano | 375.57 mi (604.43 km) |
| Gragnano to Conselice | 297.11 mi (478.16 km) |
| Gragnano to Conselve | 340.87 mi (548.58 km) |
| Gragnano to Conversano | 137.27 mi (220.92 km) |
| Gragnano to Copertino | 188.09 mi (302.71 km) |
| Gragnano to Copparo | 320.69 mi (516.10 km) |
