| Helena to Cassina de' Pecchi | 5,146.01 mi (8,281.70 km) |
| Helena to Cassino | 5,501.96 mi (8,854.56 km) |
| Helena to Castagneto Carducci | 5,312.37 mi (8,549.44 km) |
| Helena to Castano Primo | 5,126.44 mi (8,250.21 km) |
| Helena to Castel Bolognese | 5,283.65 mi (8,503.21 km) |
| Helena to Castel Gandolfo | 5,453.12 mi (8,775.95 km) |
| Helena to Castel Goffredo | 5,190.53 mi (8,353.35 km) |
| Helena to Castel Maggiore | 5,257.10 mi (8,460.48 km) |
| Helena to Castel Mella | 5,169.90 mi (8,320.15 km) |
| Helena to Castel San Giorgio | 5,568.27 mi (8,961.27 km) |
| Helena to Castel San Giovanni | 5,173.58 mi (8,326.07 km) |
| Helena to Castel San Pietro Terme | 5,272.70 mi (8,485.58 km) |
| Helena to Castel Volturno | 5,530.06 mi (8,899.77 km) |
| Helena to Castelbuono | 5,713.65 mi (9,195.23 km) |
| Helena to Casteldaccia | 5,689.64 mi (9,156.59 km) |
