| Herstal to Kastoria | 1,027.21 mi (1,653.13 km) |
| Herstal to Katerini | 1,083.67 mi (1,744.00 km) |
| Herstal to Keratsini | 1,242.83 mi (2,000.15 km) |
| Herstal to Kerkyra | 1,029.39 mi (1,656.64 km) |
| Herstal to Kiato | 1,210.89 mi (1,948.74 km) |
| Herstal to Kifisia | 1,243.55 mi (2,001.31 km) |
| Herstal to Kilkis | 1,061.41 mi (1,708.18 km) |
| Herstal to Komotini | 1,152.76 mi (1,855.18 km) |
| Herstal to Korinthos | 1,220.78 mi (1,964.66 km) |
| Herstal to Koropi | 1,255.27 mi (2,020.17 km) |
| Herstal to Korydallos | 1,243.10 mi (2,000.57 km) |
| Herstal to Kos | 1,430.19 mi (2,301.67 km) |
| Herstal to Kozani | 1,056.49 mi (1,700.26 km) |
| Herstal to Lagos | 1,139.11 mi (1,833.21 km) |
| Herstal to Lamia | 1,152.34 mi (1,854.51 km) |
