| Mariehamn to Corbetta | 1,107.53 mi (1,782.39 km) |
| Mariehamn to Corciano | 1,215.44 mi (1,956.06 km) |
| Mariehamn to Cordenons | 1,019.15 mi (1,640.17 km) |
| Mariehamn to Cori | 1,309.63 mi (2,107.64 km) |
| Mariehamn to Coriano | 1,155.78 mi (1,860.04 km) |
| Mariehamn to Corigliano Calabro | 1,424.11 mi (2,291.88 km) |
| Mariehamn to Corleone | 1,566.92 mi (2,521.71 km) |
| Mariehamn to Cormano | 1,097.97 mi (1,767.02 km) |
| Mariehamn to Cornaredo | 1,103.42 mi (1,775.79 km) |
| Mariehamn to Cornate d'Adda | 1,086.58 mi (1,748.68 km) |
| Mariehamn to Cornedo Vicentino | 1,060.75 mi (1,707.11 km) |
| Mariehamn to Correggio | 1,124.65 mi (1,809.96 km) |
| Mariehamn to Corridonia | 1,194.89 mi (1,923.00 km) |
| Mariehamn to Corsico | 1,106.38 mi (1,780.54 km) |
| Mariehamn to Cortona | 1,209.19 mi (1,946.01 km) |
