| Highlands Ranch to Cernavoda | 5,946.01 mi (9,569.17 km) |
| Highlands Ranch to Chitila | 5,878.17 mi (9,460.01 km) |
| Highlands Ranch to Cisnadie | 5,758.21 mi (9,266.94 km) |
| Highlands Ranch to Cluj-Napoca | 5,683.83 mi (9,147.25 km) |
| Highlands Ranch to Codlea | 5,796.30 mi (9,328.25 km) |
| Highlands Ranch to Comanesti | 5,783.55 mi (9,307.73 km) |
| Highlands Ranch to Comarnic | 5,826.65 mi (9,377.09 km) |
| Highlands Ranch to Constanta | 5,972.49 mi (9,611.79 km) |
| Highlands Ranch to Corabia | 5,875.78 mi (9,456.16 km) |
| Highlands Ranch to Costesti | 5,837.19 mi (9,394.06 km) |
| Highlands Ranch to Covasna | 5,808.76 mi (9,348.30 km) |
| Highlands Ranch to Craiova | 5,824.39 mi (9,373.44 km) |
| Highlands Ranch to Cristuru Secuiesc | 5,751.58 mi (9,256.27 km) |
| Highlands Ranch to Cugir | 5,728.03 mi (9,218.38 km) |
| Highlands Ranch to Cumpana | 5,973.42 mi (9,613.30 km) |
