| Maryland Heights to Cadillac (Michigan) | 463.00 mi (745.13 km) |
| Maryland Heights to Caguas (Puerto Rico) | 2,038.14 mi (3,280.06 km) |
| Maryland Heights to Cahokia (Illinois) | 19.17 mi (30.85 km) |
| Maryland Heights to Calabasas (California) | 1,592.39 mi (2,562.71 km) |
| Maryland Heights to Caldwell (Idaho) | 1,397.14 mi (2,248.47 km) |
| Maryland Heights to Caledonia (Wisconsin) | 312.93 mi (503.62 km) |
| Maryland Heights to Calera (Alabama) | 439.12 mi (706.69 km) |
| Maryland Heights to Calexico (California) | 1,459.12 mi (2,348.23 km) |
| Maryland Heights to Calhoun (Georgia) | 423.66 mi (681.82 km) |
| Maryland Heights to California (Maryland) | 755.69 mi (1,216.16 km) |
| Maryland Heights to California City (California) | 1,527.03 mi (2,457.51 km) |
| Maryland Heights to Callaway (Florida) | 655.71 mi (1,055.26 km) |
| Maryland Heights to Calumet City (Illinois) | 252.63 mi (406.56 km) |
| Maryland Heights to Calverton (Maryland) | 727.14 mi (1,170.22 km) |
| Maryland Heights to Camano (Washington) | 1,717.49 mi (2,764.03 km) |
