| Helston to Castrovillari | 1,260.33 mi (2,028.30 km) |
| Helston to Catania | 1,329.64 mi (2,139.85 km) |
| Helston to Catanzaro | 1,318.72 mi (2,122.28 km) |
| Helston to Cattolica | 944.53 mi (1,520.07 km) |
| Helston to Cava de' Tirreni | 1,160.60 mi (1,867.81 km) |
| Helston to Cavallino | 1,319.13 mi (2,122.94 km) |
| Helston to Cavarzere | 875.24 mi (1,408.56 km) |
| Helston to Cave | 1,040.72 mi (1,674.88 km) |
| Helston to Cavriago | 825.67 mi (1,328.79 km) |
| Helston to Cavriglia | 910.58 mi (1,465.44 km) |
| Helston to Cazzago San Martino | 773.15 mi (1,244.27 km) |
| Helston to Ceccano | 1,067.63 mi (1,718.19 km) |
| Helston to Cecina | 879.97 mi (1,416.17 km) |
| Helston to Cefalu | 1,262.84 mi (2,032.35 km) |
| Helston to Ceglie Messapico | 1,276.01 mi (2,053.54 km) |
