| Helston to Castelletto sopra Ticino | 710.14 mi (1,142.85 km) |
| Helston to Castelli Calepio | 766.10 mi (1,232.93 km) |
| Helston to Castelnovo ne' Monti | 830.23 mi (1,336.12 km) |
| Helston to Castelnuovo Berardenga | 918.33 mi (1,477.91 km) |
| Helston to Castelnuovo di Porto | 1,009.64 mi (1,624.86 km) |
| Helston to Castelnuovo di Verona | 809.46 mi (1,302.70 km) |
| Helston to Castelnuovo Rangone | 847.83 mi (1,364.44 km) |
| Helston to Castelvetrano | 1,236.82 mi (1,990.47 km) |
| Helston to Castelvetro di Modena | 850.39 mi (1,368.56 km) |
| Helston to Castenaso | 871.66 mi (1,402.80 km) |
| Helston to Castenedolo | 788.35 mi (1,268.73 km) |
| Helston to Castiglion Fiorentino | 935.29 mi (1,505.21 km) |
| Helston to Castiglione del Lago | 948.90 mi (1,527.11 km) |
| Helston to Castiglione delle Stiviere | 799.33 mi (1,286.39 km) |
| Helston to Castrolibero | 1,283.43 mi (2,065.48 km) |
