| Highlands Ranch to Chivasso | 5,256.64 mi (8,459.74 km) |
| Highlands Ranch to Ciampino | 5,589.23 mi (8,995.00 km) |
| Highlands Ranch to Cicciano | 5,699.81 mi (9,172.96 km) |
| Highlands Ranch to Cingoli | 5,532.68 mi (8,903.99 km) |
| Highlands Ranch to Cinisello Balsamo | 5,286.59 mi (8,507.95 km) |
| Highlands Ranch to Cinisi | 5,789.57 mi (9,317.41 km) |
| Highlands Ranch to Cirie | 5,244.32 mi (8,439.92 km) |
| Highlands Ranch to Ciro Marina | 5,873.37 mi (9,452.27 km) |
| Highlands Ranch to Cislago | 5,273.08 mi (8,486.20 km) |
| Highlands Ranch to Cisterna di Latina | 5,607.82 mi (9,024.91 km) |
| Highlands Ranch to Cisternino | 5,812.75 mi (9,354.72 km) |
| Highlands Ranch to Citta di Castello | 5,494.13 mi (8,841.94 km) |
| Highlands Ranch to Citta Sant'Angelo | 5,604.32 mi (9,019.29 km) |
| Highlands Ranch to Cittadella | 5,370.36 mi (8,642.76 km) |
| Highlands Ranch to Cittanova | 5,889.27 mi (9,477.86 km) |
