| Heerlen to Collegno | 407.79 mi (656.28 km) |
| Heerlen to Cologno al Serio | 404.05 mi (650.25 km) |
| Heerlen to Cologno Monzese | 399.77 mi (643.37 km) |
| Heerlen to Colorno | 458.64 mi (738.11 km) |
| Heerlen to Comacchio | 514.71 mi (828.35 km) |
| Heerlen to Comiso | 1,052.19 mi (1,693.34 km) |
| Heerlen to Como | 378.28 mi (608.78 km) |
| Heerlen to Concordia Sagittaria | 473.40 mi (761.87 km) |
| Heerlen to Concorezzo | 396.86 mi (638.68 km) |
| Heerlen to Conegliano | 450.36 mi (724.78 km) |
| Heerlen to Conselice | 516.83 mi (831.76 km) |
| Heerlen to Conselve | 475.28 mi (764.90 km) |
| Heerlen to Conversano | 867.35 mi (1,395.87 km) |
| Heerlen to Copertino | 934.87 mi (1,504.53 km) |
| Heerlen to Copparo | 493.98 mi (794.98 km) |
