| Heerlen to Chitila | 1,024.70 mi (1,649.10 km) |
| Heerlen to Cisnadie | 905.23 mi (1,456.82 km) |
| Heerlen to Cluj-Napoca | 847.13 mi (1,363.33 km) |
| Heerlen to Codlea | 960.15 mi (1,545.21 km) |
| Heerlen to Comanesti | 979.74 mi (1,576.74 km) |
| Heerlen to Comarnic | 983.44 mi (1,582.70 km) |
| Heerlen to Constanta | 1,148.19 mi (1,847.83 km) |
| Heerlen to Corabia | 992.78 mi (1,597.73 km) |
| Heerlen to Costesti | 973.06 mi (1,565.98 km) |
| Heerlen to Covasna | 986.56 mi (1,587.71 km) |
| Heerlen to Craiova | 942.55 mi (1,516.89 km) |
| Heerlen to Cristuru Secuiesc | 923.54 mi (1,486.30 km) |
| Heerlen to Cugir | 867.83 mi (1,396.63 km) |
| Heerlen to Cumpana | 1,146.90 mi (1,845.75 km) |
| Heerlen to Curtea de Arges | 947.47 mi (1,524.80 km) |
