| Grand Rapids to Cortona | 4,605.24 mi (7,411.42 km) |
| Grand Rapids to Cosenza | 4,950.53 mi (7,967.10 km) |
| Grand Rapids to Cossato | 4,359.56 mi (7,016.03 km) |
| Grand Rapids to Costa Volpino | 4,424.92 mi (7,121.22 km) |
| Grand Rapids to Creazzo | 4,490.91 mi (7,227.42 km) |
| Grand Rapids to Crema | 4,427.43 mi (7,125.26 km) |
| Grand Rapids to Cremona | 4,450.68 mi (7,162.68 km) |
| Grand Rapids to Crevalcore | 4,511.71 mi (7,260.90 km) |
| Grand Rapids to Crispiano | 4,930.74 mi (7,935.26 km) |
| Grand Rapids to Crosia | 4,959.19 mi (7,981.04 km) |
| Grand Rapids to Crotone | 4,995.29 mi (8,039.15 km) |
| Grand Rapids to Cuneo | 4,381.95 mi (7,052.06 km) |
| Grand Rapids to Cuorgne | 4,346.03 mi (6,994.27 km) |
| Grand Rapids to Cusano Milanino | 4,400.36 mi (7,081.70 km) |
| Grand Rapids to Cutro | 4,992.21 mi (8,034.18 km) |
