| Saint Helens to Castelletto sopra Ticino | 736.88 mi (1,185.90 km) |
| Saint Helens to Castelli Calepio | 781.05 mi (1,256.98 km) |
| Saint Helens to Castelnovo ne' Monti | 860.08 mi (1,384.16 km) |
| Saint Helens to Castelnuovo Berardenga | 953.03 mi (1,533.75 km) |
| Saint Helens to Castelnuovo di Porto | 1,050.37 mi (1,690.41 km) |
| Saint Helens to Castelnuovo di Verona | 819.45 mi (1,318.78 km) |
| Saint Helens to Castelnuovo Rangone | 870.61 mi (1,401.11 km) |
| Saint Helens to Castelvetrano | 1,317.36 mi (2,120.09 km) |
| Saint Helens to Castelvetro di Modena | 873.78 mi (1,406.22 km) |
| Saint Helens to Castenaso | 889.96 mi (1,432.25 km) |
| Saint Helens to Castenedolo | 802.23 mi (1,291.07 km) |
| Saint Helens to Castiglion Fiorentino | 966.12 mi (1,554.82 km) |
| Saint Helens to Castiglione del Lago | 981.27 mi (1,579.19 km) |
| Saint Helens to Castiglione delle Stiviere | 812.44 mi (1,307.50 km) |
| Saint Helens to Castrolibero | 1,321.97 mi (2,127.50 km) |
