| Colonia to Carmignano | 4,167.99 mi (6,707.73 km) |
| Colonia to Carovigno | 4,570.28 mi (7,355.16 km) |
| Colonia to Carpenedolo | 4,091.14 mi (6,584.05 km) |
| Colonia to Carpi | 4,129.71 mi (6,646.12 km) |
| Colonia to Carrara | 4,119.33 mi (6,629.42 km) |
| Colonia to Carugate | 4,038.12 mi (6,498.73 km) |
| Colonia to Casal di Principe | 4,403.58 mi (7,086.88 km) |
| Colonia to Casale Monferrato | 4,013.74 mi (6,459.49 km) |
| Colonia to Casale sul Sile | 4,164.07 mi (6,701.42 km) |
| Colonia to Casalecchio di Reno | 4,156.97 mi (6,689.99 km) |
| Colonia to Casalgrande | 4,129.93 mi (6,646.48 km) |
| Colonia to Casalmaggiore | 4,102.87 mi (6,602.93 km) |
| Colonia to Casalnuovo di Napoli | 4,416.83 mi (7,108.20 km) |
| Colonia to Casalpusterlengo | 4,063.73 mi (6,539.94 km) |
| Colonia to Casaluce | 4,407.14 mi (7,092.60 km) |
