| Harsum to Cologno al Serio | 457.69 mi (736.59 km) |
| Harsum to Cologno Monzese | 462.36 mi (744.09 km) |
| Harsum to Colorno | 502.82 mi (809.22 km) |
| Harsum to Comacchio | 528.42 mi (850.41 km) |
| Harsum to Comiso | 1,077.93 mi (1,734.76 km) |
| Harsum to Como | 443.62 mi (713.94 km) |
| Harsum to Concordia Sagittaria | 463.67 mi (746.20 km) |
| Harsum to Concorezzo | 457.97 mi (737.04 km) |
| Harsum to Conegliano | 449.16 mi (722.85 km) |
| Harsum to Conselice | 538.10 mi (865.99 km) |
| Harsum to Conselve | 489.46 mi (787.70 km) |
| Harsum to Conversano | 846.63 mi (1,362.51 km) |
| Harsum to Copertino | 909.65 mi (1,463.95 km) |
| Harsum to Copparo | 511.93 mi (823.87 km) |
| Harsum to Corato | 821.80 mi (1,322.56 km) |
