| Watford to Kocaali | 1,643.29 mi (2,644.62 km) |
| Watford to Kocaeli | 1,616.95 mi (2,602.22 km) |
| Watford to Konak | 1,610.15 mi (2,591.28 km) |
| Watford to Konakli | 1,886.29 mi (3,035.69 km) |
| Watford to Konya | 1,850.42 mi (2,977.96 km) |
| Watford to Koprukoy | 2,153.17 mi (3,465.19 km) |
| Watford to Korfez | 1,608.47 mi (2,588.58 km) |
| Watford to Korkut | 2,200.93 mi (3,542.06 km) |
| Watford to Kose | 2,048.95 mi (3,297.46 km) |
| Watford to Kovancilar | 2,120.34 mi (3,412.36 km) |
| Watford to Koyulhisar | 1,967.68 mi (3,166.68 km) |
| Watford to Kozan | 2,005.75 mi (3,227.94 km) |
| Watford to Kozlu | 1,665.25 mi (2,679.96 km) |
| Watford to Kozluk | 2,211.82 mi (3,559.58 km) |
| Watford to Kucuk Dalyan | 2,077.60 mi (3,343.58 km) |
