| Erkrath to Kocaeli | 1,311.06 mi (2,109.95 km) |
| Erkrath to Konak | 1,320.17 mi (2,124.60 km) |
| Erkrath to Konakli | 1,588.90 mi (2,557.09 km) |
| Erkrath to Konya | 1,547.85 mi (2,491.02 km) |
| Erkrath to Koprukoy | 1,837.42 mi (2,957.04 km) |
| Erkrath to Korfez | 1,302.87 mi (2,096.76 km) |
| Erkrath to Korkut | 1,885.96 mi (3,035.16 km) |
| Erkrath to Kose | 1,733.81 mi (2,790.30 km) |
| Erkrath to Kovancilar | 1,806.46 mi (2,907.22 km) |
| Erkrath to Koyulhisar | 1,653.42 mi (2,660.92 km) |
| Erkrath to Kozan | 1,698.27 mi (2,733.10 km) |
| Erkrath to Kozlu | 1,354.76 mi (2,180.28 km) |
| Erkrath to Kozluk | 1,897.44 mi (3,053.64 km) |
| Erkrath to Kucuk Dalyan | 1,772.20 mi (2,852.08 km) |
| Erkrath to Kucukcekmece | 1,256.41 mi (2,021.99 km) |
