| Calhoun to Collegno | 4,694.70 mi (7,555.39 km) |
| Calhoun to Cologno al Serio | 4,769.74 mi (7,676.16 km) |
| Calhoun to Cologno Monzese | 4,753.57 mi (7,650.12 km) |
| Calhoun to Colorno | 4,820.46 mi (7,757.78 km) |
| Calhoun to Comacchio | 4,905.15 mi (7,894.07 km) |
| Calhoun to Comiso | 5,294.58 mi (8,520.81 km) |
| Calhoun to Como | 4,736.22 mi (7,622.21 km) |
| Calhoun to Concordia Sagittaria | 4,896.18 mi (7,879.64 km) |
| Calhoun to Concorezzo | 4,754.03 mi (7,650.87 km) |
| Calhoun to Conegliano | 4,868.99 mi (7,835.88 km) |
| Calhoun to Conselice | 4,896.59 mi (7,880.29 km) |
| Calhoun to Conselve | 4,873.35 mi (7,842.89 km) |
| Calhoun to Conversano | 5,253.71 mi (8,455.03 km) |
| Calhoun to Copertino | 5,321.37 mi (8,563.92 km) |
| Calhoun to Copparo | 4,883.38 mi (7,859.04 km) |
