| Mariehamn to Cogolin | 1,292.29 mi (2,079.74 km) |
| Mariehamn to Colmar | 970.68 mi (1,562.16 km) |
| Mariehamn to Colombes | 1,041.94 mi (1,676.84 km) |
| Mariehamn to Colomiers | 1,377.79 mi (2,217.33 km) |
| Mariehamn to Combs-la-Ville | 1,048.21 mi (1,686.93 km) |
| Mariehamn to Comines | 920.51 mi (1,481.42 km) |
| Mariehamn to Compiegne | 999.32 mi (1,608.25 km) |
| Mariehamn to Concarneau | 1,272.68 mi (2,048.17 km) |
| Mariehamn to Conde-sur-l'Escaut | 921.62 mi (1,483.21 km) |
| Mariehamn to Conflans-Sainte-Honorine | 1,041.78 mi (1,676.58 km) |
| Mariehamn to Corbas | 1,171.60 mi (1,885.50 km) |
| Mariehamn to Corbeil-Essonnes | 1,053.42 mi (1,695.32 km) |
| Mariehamn to Cormeilles-en-Parisis | 1,040.46 mi (1,674.46 km) |
| Mariehamn to Cosne sur Loire | 1,111.83 mi (1,789.32 km) |
| Mariehamn to Coudekerque-Branche | 923.67 mi (1,486.50 km) |
