| Mariehamn to Castelli Calepio | 1,080.80 mi (1,739.38 km) |
| Mariehamn to Castelnovo ne' Monti | 1,152.34 mi (1,854.50 km) |
| Mariehamn to Castelnuovo Berardenga | 1,210.11 mi (1,947.48 km) |
| Mariehamn to Castelnuovo di Porto | 1,280.65 mi (2,061.01 km) |
| Mariehamn to Castelnuovo di Verona | 1,081.01 mi (1,739.72 km) |
| Mariehamn to Castelnuovo Rangone | 1,137.20 mi (1,830.15 km) |
| Mariehamn to Castelvetrano | 1,580.30 mi (2,543.25 km) |
| Mariehamn to Castelvetro di Modena | 1,140.30 mi (1,835.13 km) |
| Mariehamn to Castenaso | 1,132.80 mi (1,823.07 km) |
| Mariehamn to Castenedolo | 1,085.43 mi (1,746.84 km) |
| Mariehamn to Castiglion Fiorentino | 1,205.40 mi (1,939.91 km) |
| Mariehamn to Castiglione del Lago | 1,217.73 mi (1,959.74 km) |
| Mariehamn to Castiglione delle Stiviere | 1,087.06 mi (1,749.46 km) |
| Mariehamn to Castrolibero | 1,445.09 mi (2,325.65 km) |
| Mariehamn to Castrovillari | 1,410.69 mi (2,270.29 km) |
