| Heerlen to Castelfidardo | 622.94 mi (1,002.52 km) |
| Heerlen to Castelfiorentino | 554.56 mi (892.47 km) |
| Heerlen to Castelfranco di Sopra | 565.26 mi (909.69 km) |
| Heerlen to Castelfranco di Sotto | 543.99 mi (875.46 km) |
| Heerlen to Castelfranco Emilia | 493.84 mi (794.76 km) |
| Heerlen to Castelfranco Veneto | 452.21 mi (727.76 km) |
| Heerlen to Castellabate | 850.04 mi (1,368.00 km) |
| Heerlen to Castellammare del Golfo | 950.20 mi (1,529.19 km) |
| Heerlen to Castellammare di Stabia | 813.11 mi (1,308.58 km) |
| Heerlen to Castellamonte | 388.34 mi (624.98 km) |
| Heerlen to Castellana Grotte | 873.59 mi (1,405.91 km) |
| Heerlen to Castellaneta | 881.28 mi (1,418.28 km) |
| Heerlen to Castellanza | 387.76 mi (624.04 km) |
| Heerlen to Castellarano | 489.90 mi (788.41 km) |
| Heerlen to Castelleone | 423.46 mi (681.49 km) |
