| Helston to Cassina de' Pecchi | 747.71 mi (1,203.33 km) |
| Helston to Cassino | 1,090.48 mi (1,754.96 km) |
| Helston to Castagneto Carducci | 889.64 mi (1,431.73 km) |
| Helston to Castano Primo | 721.54 mi (1,161.21 km) |
| Helston to Castel Bolognese | 892.53 mi (1,436.39 km) |
| Helston to Castel Gandolfo | 1,032.67 mi (1,661.92 km) |
| Helston to Castel Goffredo | 801.78 mi (1,290.33 km) |
| Helston to Castel Maggiore | 865.23 mi (1,392.45 km) |
| Helston to Castel Mella | 781.16 mi (1,257.16 km) |
| Helston to Castel San Giorgio | 1,156.86 mi (1,861.78 km) |
| Helston to Castel San Giovanni | 767.23 mi (1,234.74 km) |
| Helston to Castel San Pietro Terme | 880.41 mi (1,416.89 km) |
| Helston to Castel Volturno | 1,113.80 mi (1,792.49 km) |
| Helston to Castelbuono | 1,271.00 mi (2,045.48 km) |
| Helston to Casteldaccia | 1,244.31 mi (2,002.52 km) |
