| Watford to Kucukcekmece | 1,560.84 mi (2,511.93 km) |
| Watford to Kucukkuyu | 1,536.92 mi (2,473.44 km) |
| Watford to Kulp | 2,178.27 mi (3,505.59 km) |
| Watford to Kulu | 1,820.00 mi (2,929.00 km) |
| Watford to Kumcati | 2,278.29 mi (3,666.56 km) |
| Watford to Kursunlu | 1,752.69 mi (2,820.68 km) |
| Watford to Kurtalan | 2,232.30 mi (3,592.54 km) |
| Watford to Kusadasi | 1,642.11 mi (2,642.72 km) |
| Watford to Kutahya | 1,678.34 mi (2,701.03 km) |
| Watford to Kuzuculu | 2,049.51 mi (3,298.37 km) |
| Watford to Lapseki | 1,503.50 mi (2,419.65 km) |
| Watford to Lice | 2,165.15 mi (3,484.47 km) |
| Watford to Luleburgaz | 1,484.46 mi (2,389.00 km) |
| Watford to Macka | 2,022.97 mi (3,255.66 km) |
| Watford to Malatya | 2,071.08 mi (3,333.08 km) |
