| Fort Collins to Busto Arsizio | 5,221.92 mi (8,403.87 km) |
| Fort Collins to Busto Garolfo | 5,226.22 mi (8,410.79 km) |
| Fort Collins to Cabras | 5,485.70 mi (8,828.38 km) |
| Fort Collins to Cadelbosco di Sopra | 5,323.48 mi (8,567.32 km) |
| Fort Collins to Cadoneghe | 5,335.12 mi (8,586.05 km) |
| Fort Collins to Cagli | 5,454.53 mi (8,778.21 km) |
| Fort Collins to Cagliari | 5,541.95 mi (8,918.90 km) |
| Fort Collins to Cairo Montenotte | 5,259.69 mi (8,464.65 km) |
| Fort Collins to Caivano | 5,643.84 mi (9,082.88 km) |
| Fort Collins to Calcinaia | 5,377.40 mi (8,654.09 km) |
| Fort Collins to Calcinato | 5,283.20 mi (8,502.49 km) |
| Fort Collins to Calderara di Reno | 5,356.29 mi (8,620.11 km) |
| Fort Collins to Caldogno | 5,312.89 mi (8,550.27 km) |
| Fort Collins to Calenzano | 5,387.51 mi (8,670.36 km) |
| Fort Collins to Calolziocorte | 5,232.91 mi (8,421.56 km) |
