| Clemmons to Collegno | 4,428.67 mi (7,127.25 km) |
| Clemmons to Cologno al Serio | 4,505.51 mi (7,250.92 km) |
| Clemmons to Cologno Monzese | 4,489.03 mi (7,224.40 km) |
| Clemmons to Colorno | 4,555.66 mi (7,331.63 km) |
| Clemmons to Comacchio | 4,641.02 mi (7,469.00 km) |
| Clemmons to Comiso | 5,022.86 mi (8,083.51 km) |
| Clemmons to Como | 4,472.00 mi (7,196.98 km) |
| Clemmons to Concordia Sagittaria | 4,633.99 mi (7,457.69 km) |
| Clemmons to Concorezzo | 4,489.62 mi (7,225.34 km) |
| Clemmons to Conegliano | 4,606.66 mi (7,413.70 km) |
| Clemmons to Conselice | 4,632.00 mi (7,454.49 km) |
| Clemmons to Conselve | 4,609.80 mi (7,418.76 km) |
| Clemmons to Conversano | 4,987.58 mi (8,026.73 km) |
| Clemmons to Copertino | 5,054.96 mi (8,135.18 km) |
| Clemmons to Copparo | 4,619.34 mi (7,434.10 km) |
