| Watford to Eckington | 121.26 mi (195.15 km) |
| Watford to Edgware | 5.84 mi (9.40 km) |
| Watford to Edinburgh | 318.04 mi (511.84 km) |
| Watford to Edmonton | 14.20 mi (22.85 km) |
| Watford to Egg Buckland | 183.31 mi (295.01 km) |
| Watford to Elgin | 430.24 mi (692.40 km) |
| Watford to Elland | 152.62 mi (245.62 km) |
| Watford to Ellesmere Port | 153.85 mi (247.60 km) |
| Watford to Ellon | 400.34 mi (644.29 km) |
| Watford to Eltham | 23.85 mi (38.38 km) |
| Watford to Ely | 58.47 mi (94.09 km) |
| Watford to Emsworth | 60.43 mi (97.25 km) |
| Watford to Enfield | 13.50 mi (21.73 km) |
| Watford to Enfield Lock | 15.87 mi (25.54 km) |
| Watford to Englefield Green | 17.25 mi (27.76 km) |
