| Colonia to Cassina de' Pecchi | 4,040.62 mi (6,502.75 km) |
| Colonia to Cassino | 4,372.67 mi (7,037.13 km) |
| Colonia to Castagneto Carducci | 4,171.90 mi (6,714.03 km) |
| Colonia to Castano Primo | 4,013.81 mi (6,459.60 km) |
| Colonia to Castel Bolognese | 4,184.84 mi (6,734.85 km) |
| Colonia to Castel Gandolfo | 4,311.73 mi (6,939.06 km) |
| Colonia to Castel Goffredo | 4,095.17 mi (6,590.54 km) |
| Colonia to Castel Maggiore | 4,157.74 mi (6,691.23 km) |
| Colonia to Castel Mella | 4,074.68 mi (6,557.56 km) |
| Colonia to Castel San Giorgio | 4,437.21 mi (7,141.00 km) |
| Colonia to Castel San Giovanni | 4,058.55 mi (6,531.60 km) |
| Colonia to Castel San Pietro Terme | 4,172.69 mi (6,715.29 km) |
| Colonia to Castel Volturno | 4,392.80 mi (7,069.52 km) |
| Colonia to Castelbuono | 4,517.45 mi (7,270.14 km) |
| Colonia to Casteldaccia | 4,487.23 mi (7,221.49 km) |
