| Heerlen to Cay | 1,482.25 mi (2,385.45 km) |
| Heerlen to Caybasi | 1,626.43 mi (2,617.49 km) |
| Heerlen to Caycuma | 1,399.05 mi (2,251.55 km) |
| Heerlen to Cayeli | 1,779.49 mi (2,863.82 km) |
| Heerlen to Cayiralan | 1,637.30 mi (2,634.99 km) |
| Heerlen to Cayirhan | 1,439.63 mi (2,316.85 km) |
| Heerlen to Cayirli | 1,801.28 mi (2,898.89 km) |
| Heerlen to Cayirova | 1,314.21 mi (2,115.02 km) |
| Heerlen to Caykara | 1,772.12 mi (2,851.95 km) |
| Heerlen to Cekerek | 1,598.12 mi (2,571.93 km) |
| Heerlen to Cekme | 1,297.06 mi (2,087.42 km) |
| Heerlen to Celtik | 1,492.46 mi (2,401.88 km) |
| Heerlen to Cerkes | 1,458.43 mi (2,347.11 km) |
| Heerlen to Cerkezkoy | 1,238.98 mi (1,993.95 km) |
| Heerlen to Cermik | 1,847.35 mi (2,973.02 km) |
