| Mariehamn to Campos del Puerto | 1,604.55 mi (2,582.27 km) |
| Mariehamn to Canals | 1,710.29 mi (2,752.44 km) |
| Mariehamn to Candelaria | 2,768.68 mi (4,455.76 km) |
| Mariehamn to Canet de Mar | 1,475.83 mi (2,375.12 km) |
| Mariehamn to Cangas | 1,724.88 mi (2,775.92 km) |
| Mariehamn to Cangas de Narcea | 1,608.83 mi (2,589.17 km) |
| Mariehamn to Canovellas | 1,480.56 mi (2,382.73 km) |
| Mariehamn to Canteras | 1,805.48 mi (2,905.63 km) |
| Mariehamn to Cantillana | 1,920.12 mi (3,090.13 km) |
| Mariehamn to Capdepera | 1,579.16 mi (2,541.41 km) |
| Mariehamn to Carballo | 1,668.18 mi (2,684.68 km) |
| Mariehamn to Carcagente | 1,697.12 mi (2,731.26 km) |
| Mariehamn to Cardedeu | 1,477.45 mi (2,377.73 km) |
| Mariehamn to Carlet | 1,692.21 mi (2,723.34 km) |
| Mariehamn to Carmona | 1,923.63 mi (3,095.79 km) |
