| Belfast to Castelletto sopra Ticino | 886.73 mi (1,427.06 km) |
| Belfast to Castelli Calepio | 931.81 mi (1,499.61 km) |
| Belfast to Castelnovo ne' Monti | 1,010.15 mi (1,625.68 km) |
| Belfast to Castelnuovo Berardenga | 1,103.01 mi (1,775.12 km) |
| Belfast to Castelnuovo di Porto | 1,200.11 mi (1,931.39 km) |
| Belfast to Castelnuovo di Verona | 970.52 mi (1,561.90 km) |
| Belfast to Castelnuovo Rangone | 1,021.18 mi (1,643.43 km) |
| Belfast to Castelvetrano | 1,463.02 mi (2,354.50 km) |
| Belfast to Castelvetro di Modena | 1,024.32 mi (1,648.48 km) |
| Belfast to Castenaso | 1,040.80 mi (1,675.01 km) |
| Belfast to Castenedolo | 953.10 mi (1,533.87 km) |
| Belfast to Castiglion Fiorentino | 1,116.41 mi (1,796.69 km) |
| Belfast to Castiglione del Lago | 1,131.48 mi (1,820.94 km) |
| Belfast to Castiglione delle Stiviere | 963.37 mi (1,550.39 km) |
| Belfast to Castrolibero | 1,472.33 mi (2,369.48 km) |
