| Watford to Yverdon-les-Bains | 462.60 mi (744.48 km) |
| Watford to Zofingen | 480.22 mi (772.84 km) |
| Watford to Zollikon | 500.38 mi (805.28 km) |
| Watford to Zuchwil | 471.02 mi (758.03 km) |
| Watford to Zug | 505.99 mi (814.32 km) |
| Watford to Zurich | 497.62 mi (800.83 km) |
| Watford to Ra's al `Ayn | 2,210.99 mi (3,558.25 km) |
| Watford to Tall Abyad | 2,171.21 mi (3,494.22 km) |
| Watford to Acarlar | 1,663.19 mi (2,676.65 km) |
| Watford to Acigol | 1,903.28 mi (3,063.03 km) |
| Watford to Acipayam | 1,745.29 mi (2,808.77 km) |
| Watford to Adakli | 2,124.68 mi (3,419.35 km) |
| Watford to Adana | 2,006.53 mi (3,229.19 km) |
| Watford to Adilcevaz | 2,239.14 mi (3,603.55 km) |
| Watford to Adiyaman | 2,095.00 mi (3,371.57 km) |
