| Fort Collins to Cassina de' Pecchi | 5,244.34 mi (8,439.94 km) |
| Fort Collins to Cassino | 5,599.39 mi (9,011.35 km) |
| Fort Collins to Castagneto Carducci | 5,402.30 mi (8,694.16 km) |
| Fort Collins to Castano Primo | 5,221.95 mi (8,403.92 km) |
| Fort Collins to Castel Bolognese | 5,387.00 mi (8,669.53 km) |
| Fort Collins to Castel Gandolfo | 5,545.48 mi (8,924.59 km) |
| Fort Collins to Castel Goffredo | 5,293.11 mi (8,518.43 km) |
| Fort Collins to Castel Maggiore | 5,359.72 mi (8,625.64 km) |
| Fort Collins to Castel Mella | 5,272.09 mi (8,484.61 km) |
| Fort Collins to Castel San Giorgio | 5,666.37 mi (9,119.13 km) |
| Fort Collins to Castel San Giovanni | 5,269.27 mi (8,480.07 km) |
| Fort Collins to Castel San Pietro Terme | 5,375.42 mi (8,650.91 km) |
| Fort Collins to Castel Volturno | 5,625.31 mi (9,053.05 km) |
| Fort Collins to Castelbuono | 5,791.77 mi (9,320.95 km) |
| Fort Collins to Casteldaccia | 5,765.12 mi (9,278.06 km) |
