| Hillsborough to Collegno | 3,995.11 mi (6,429.51 km) |
| Hillsborough to Cologno al Serio | 4,070.61 mi (6,551.02 km) |
| Hillsborough to Cologno Monzese | 4,054.33 mi (6,524.82 km) |
| Hillsborough to Colorno | 4,121.15 mi (6,632.36 km) |
| Hillsborough to Comacchio | 4,206.06 mi (6,769.00 km) |
| Hillsborough to Comiso | 4,596.30 mi (7,397.03 km) |
| Hillsborough to Como | 4,037.09 mi (6,497.07 km) |
| Hillsborough to Concordia Sagittaria | 4,197.91 mi (6,755.88 km) |
| Hillsborough to Concorezzo | 4,054.84 mi (6,525.63 km) |
| Hillsborough to Conegliano | 4,170.65 mi (6,712.01 km) |
| Hillsborough to Conselice | 4,197.35 mi (6,754.98 km) |
| Hillsborough to Conselve | 4,174.47 mi (6,718.16 km) |
| Hillsborough to Conversano | 4,554.12 mi (7,329.16 km) |
| Hillsborough to Copertino | 4,621.75 mi (7,437.99 km) |
| Hillsborough to Copparo | 4,184.32 mi (6,734.01 km) |
