| Castricum to Kayapinar | 1,972.54 mi (3,174.49 km) |
| Castricum to Kayseri | 1,748.63 mi (2,814.15 km) |
| Castricum to Kemalpasa | 1,460.44 mi (2,350.35 km) |
| Castricum to Kemer | 1,668.08 mi (2,684.52 km) |
| Castricum to Keskin | 1,630.44 mi (2,623.93 km) |
| Castricum to Kilimli | 1,477.56 mi (2,377.91 km) |
| Castricum to Kilis | 1,909.12 mi (3,072.43 km) |
| Castricum to Kinik | 1,424.44 mi (2,292.42 km) |
| Castricum to Kirikkale | 1,618.66 mi (2,604.98 km) |
| Castricum to Kirkagac | 1,434.44 mi (2,308.51 km) |
| Castricum to Kirklareli | 1,288.23 mi (2,073.21 km) |
| Castricum to Kirsehir | 1,676.65 mi (2,698.31 km) |
| Castricum to Kizilpinar | 1,338.33 mi (2,153.83 km) |
| Castricum to Kiziltepe | 2,023.46 mi (3,256.44 km) |
| Castricum to Kocaali | 1,458.58 mi (2,347.37 km) |
