| Fort Collins to Casamassima | 5,733.88 mi (9,227.79 km) |
| Fort Collins to Casandrino | 5,642.95 mi (9,081.45 km) |
| Fort Collins to Casapulla | 5,637.26 mi (9,072.30 km) |
| Fort Collins to Casarano | 5,825.51 mi (9,375.26 km) |
| Fort Collins to Casatenovo | 5,233.65 mi (8,422.75 km) |
| Fort Collins to Casciana Terme | 5,385.14 mi (8,666.55 km) |
| Fort Collins to Cascina | 5,375.07 mi (8,650.33 km) |
| Fort Collins to Caselle Torinese | 5,200.55 mi (8,369.48 km) |
| Fort Collins to Caserta | 5,639.01 mi (9,075.10 km) |
| Fort Collins to Casier | 5,337.46 mi (8,589.80 km) |
| Fort Collins to Casorate Primo | 5,241.88 mi (8,435.99 km) |
| Fort Collins to Casoria | 5,646.40 mi (9,087.01 km) |
| Fort Collins to Cassano al Ionio | 5,774.50 mi (9,293.15 km) |
| Fort Collins to Cassano d'Adda | 5,248.71 mi (8,446.98 km) |
| Fort Collins to Cassano delle Murge | 5,732.29 mi (9,225.23 km) |
