| Heerlen to Cizre | 1,998.12 mi (3,215.67 km) |
| Heerlen to Cobanlar | 1,467.47 mi (2,361.67 km) |
| Heerlen to Corlu | 1,236.95 mi (1,990.68 km) |
| Heerlen to Corum | 1,555.79 mi (2,503.81 km) |
| Heerlen to Cukurca | 2,062.39 mi (3,319.10 km) |
| Heerlen to Cukurcayir | 1,741.65 mi (2,802.91 km) |
| Heerlen to Cumayeri | 1,376.03 mi (2,214.51 km) |
| Heerlen to Cumra | 1,599.60 mi (2,574.31 km) |
| Heerlen to Cungus | 1,837.14 mi (2,956.59 km) |
| Heerlen to Dargecit | 1,969.04 mi (3,168.86 km) |
| Heerlen to Davutlar | 1,382.46 mi (2,224.85 km) |
| Heerlen to Demirozu | 1,780.51 mi (2,865.45 km) |
| Heerlen to Demre | 1,557.87 mi (2,507.14 km) |
| Heerlen to Denizciler | 1,781.38 mi (2,866.85 km) |
| Heerlen to Denizli | 1,447.18 mi (2,329.01 km) |
