| Heerlen to Cividale del Friuli | 474.53 mi (763.69 km) |
| Heerlen to Civita Castellana | 666.58 mi (1,072.76 km) |
| Heerlen to Civitanova Marche | 637.54 mi (1,026.02 km) |
| Heerlen to Civitavecchia | 666.45 mi (1,072.55 km) |
| Heerlen to Civitella in Val di Chiana | 581.58 mi (935.96 km) |
| Heerlen to Clusone | 390.35 mi (628.20 km) |
| Heerlen to Coccaglio | 410.86 mi (661.22 km) |
| Heerlen to Codigoro | 505.17 mi (812.99 km) |
| Heerlen to Codogno | 431.08 mi (693.76 km) |
| Heerlen to Codroipo | 467.03 mi (751.61 km) |
| Heerlen to Cogoleto | 465.41 mi (749.01 km) |
| Heerlen to Colle di Val d'Elsa | 570.54 mi (918.20 km) |
| Heerlen to Colle Salvetti | 545.45 mi (877.81 km) |
| Heerlen to Collecchio | 466.88 mi (751.37 km) |
| Heerlen to Colleferro | 715.03 mi (1,150.73 km) |
