| Heerlen to Calafell | 701.39 mi (1,128.77 km) |
| Heerlen to Calahorra | 702.07 mi (1,129.88 km) |
| Heerlen to Calasparra | 951.29 mi (1,530.96 km) |
| Heerlen to Calatayud | 752.02 mi (1,210.26 km) |
| Heerlen to Caldas de Montbuy | 664.40 mi (1,069.24 km) |
| Heerlen to Caldas de Reyes | 895.30 mi (1,440.85 km) |
| Heerlen to Calella | 659.41 mi (1,061.22 km) |
| Heerlen to Callosa de Segura | 943.31 mi (1,518.11 km) |
| Heerlen to Calpe | 893.64 mi (1,438.17 km) |
| Heerlen to Calvia | 799.84 mi (1,287.22 km) |
| Heerlen to Camas | 1,102.58 mi (1,774.44 km) |
| Heerlen to Cambados | 906.14 mi (1,458.30 km) |
| Heerlen to Cambre | 851.58 mi (1,370.49 km) |
| Heerlen to Cambrils | 717.90 mi (1,155.35 km) |
| Heerlen to Campo de Criptana | 907.38 mi (1,460.28 km) |
