| Mariehamn to Carovigno | 1,343.93 mi (2,162.85 km) |
| Mariehamn to Carpenedolo | 1,090.33 mi (1,754.72 km) |
| Mariehamn to Carpi | 1,122.40 mi (1,806.32 km) |
| Mariehamn to Carrara | 1,180.05 mi (1,899.10 km) |
| Mariehamn to Carugate | 1,095.25 mi (1,762.63 km) |
| Mariehamn to Casal di Principe | 1,341.65 mi (2,159.17 km) |
| Mariehamn to Casale Monferrato | 1,136.81 mi (1,829.52 km) |
| Mariehamn to Casale sul Sile | 1,049.20 mi (1,688.53 km) |
| Mariehamn to Casalecchio di Reno | 1,136.98 mi (1,829.80 km) |
| Mariehamn to Casalgrande | 1,137.73 mi (1,831.00 km) |
| Mariehamn to Casalmaggiore | 1,115.61 mi (1,795.41 km) |
| Mariehamn to Casalnuovo di Napoli | 1,346.80 mi (2,167.47 km) |
| Mariehamn to Casalpusterlengo | 1,114.50 mi (1,793.61 km) |
| Mariehamn to Casaluce | 1,342.26 mi (2,160.17 km) |
| Mariehamn to Casamassima | 1,329.42 mi (2,139.49 km) |
