| Nieuwkoop to Karditsa | 1,205.29 mi (1,939.73 km) |
| Nieuwkoop to Kastoria | 1,121.40 mi (1,804.73 km) |
| Nieuwkoop to Katerini | 1,175.75 mi (1,892.18 km) |
| Nieuwkoop to Keratsini | 1,337.70 mi (2,152.83 km) |
| Nieuwkoop to Kerkyra | 1,128.45 mi (1,816.06 km) |
| Nieuwkoop to Kiato | 1,307.38 mi (2,104.02 km) |
| Nieuwkoop to Kifisia | 1,337.80 mi (2,152.98 km) |
| Nieuwkoop to Kilkis | 1,150.71 mi (1,851.88 km) |
| Nieuwkoop to Komotini | 1,235.88 mi (1,988.95 km) |
| Nieuwkoop to Korinthos | 1,317.05 mi (2,119.59 km) |
| Nieuwkoop to Koropi | 1,349.77 mi (2,172.24 km) |
| Nieuwkoop to Korydallos | 1,337.87 mi (2,153.09 km) |
| Nieuwkoop to Kos | 1,520.24 mi (2,446.60 km) |
| Nieuwkoop to Kozani | 1,150.08 mi (1,850.87 km) |
| Nieuwkoop to Lagos | 1,223.21 mi (1,968.57 km) |
