| Herdecke to Kayapinar | 1,836.69 mi (2,955.87 km) |
| Herdecke to Kayseri | 1,610.04 mi (2,591.10 km) |
| Herdecke to Kemalpasa | 1,318.40 mi (2,121.77 km) |
| Herdecke to Kemer | 1,526.13 mi (2,456.07 km) |
| Herdecke to Keskin | 1,491.48 mi (2,400.30 km) |
| Herdecke to Kilimli | 1,339.31 mi (2,155.42 km) |
| Herdecke to Kilis | 1,769.86 mi (2,848.31 km) |
| Herdecke to Kinik | 1,282.44 mi (2,063.89 km) |
| Herdecke to Kirikkale | 1,479.80 mi (2,381.50 km) |
| Herdecke to Kirkagac | 1,292.48 mi (2,080.04 km) |
| Herdecke to Kirklareli | 1,147.21 mi (1,846.26 km) |
| Herdecke to Kirsehir | 1,537.56 mi (2,474.46 km) |
| Herdecke to Kizilpinar | 1,197.34 mi (1,926.93 km) |
| Herdecke to Kiziltepe | 1,887.10 mi (3,036.99 km) |
| Herdecke to Kocaali | 1,319.12 mi (2,122.93 km) |
