| Humacao to Cabestany | 4,307.25 mi (6,931.85 km) |
| Humacao to Cabries | 4,429.94 mi (7,129.29 km) |
| Humacao to Cachan | 4,293.33 mi (6,909.45 km) |
| Humacao to Caen | 4,173.70 mi (6,716.92 km) |
| Humacao to Cagnes-sur-Mer | 4,518.08 mi (7,271.15 km) |
| Humacao to Cahors | 4,234.77 mi (6,815.20 km) |
| Humacao to Calais | 4,284.43 mi (6,895.13 km) |
| Humacao to Caluire-et-Cuire | 4,403.08 mi (7,086.07 km) |
| Humacao to Cambrai | 4,340.39 mi (6,985.18 km) |
| Humacao to Canet-en-Roussillon | 4,310.53 mi (6,937.12 km) |
| Humacao to Cannes | 4,511.56 mi (7,260.65 km) |
| Humacao to Canteleu | 4,238.60 mi (6,821.37 km) |
| Humacao to Capbreton | 4,089.32 mi (6,581.12 km) |
| Humacao to Carcassonne | 4,277.67 mi (6,884.24 km) |
| Humacao to Carmaux | 4,269.34 mi (6,870.84 km) |
