| Fort Collins to Chivasso | 5,208.40 mi (8,382.11 km) |
| Fort Collins to Ciampino | 5,540.97 mi (8,917.34 km) |
| Fort Collins to Cicciano | 5,651.12 mi (9,094.59 km) |
| Fort Collins to Cingoli | 5,483.19 mi (8,824.34 km) |
| Fort Collins to Cinisello Balsamo | 5,237.54 mi (8,429.01 km) |
| Fort Collins to Cinisi | 5,743.30 mi (9,242.95 km) |
| Fort Collins to Cirie | 5,196.18 mi (8,362.44 km) |
| Fort Collins to Ciro Marina | 5,824.30 mi (9,373.30 km) |
| Fort Collins to Cislago | 5,224.07 mi (8,407.32 km) |
| Fort Collins to Cisterna di Latina | 5,559.58 mi (8,947.28 km) |
| Fort Collins to Cisternino | 5,762.77 mi (9,274.28 km) |
| Fort Collins to Citta di Castello | 5,445.03 mi (8,762.93 km) |
| Fort Collins to Citta Sant'Angelo | 5,554.95 mi (8,939.82 km) |
| Fort Collins to Cittadella | 5,320.14 mi (8,561.94 km) |
| Fort Collins to Cittanova | 5,841.32 mi (9,400.70 km) |
