| Cities | Distance |
|---|---|
| Watford to Nuth | 276.00 mi (444.18 km) |
| Watford to Oegstgeest | 210.36 mi (338.54 km) |
| Watford to Oirschot | 244.74 mi (393.87 km) |
| Watford to Oisterwijk | 240.04 mi (386.31 km) |
| Watford to Oldebroek | 272.98 mi (439.32 km) |
| Watford to Oldenzaal | 315.05 mi (507.03 km) |
| Watford to Ommen | 295.17 mi (475.04 km) |
| Watford to Oosterend | 288.21 mi (463.83 km) |
| Watford to Oosterhout | 225.14 mi (362.32 km) |
| Watford to Oosterwolde | 296.96 mi (477.91 km) |
| Watford to Oostzaan | 230.63 mi (371.17 km) |
| Watford to Opmeer | 237.66 mi (382.47 km) |
| Watford to Oss | 253.17 mi (407.44 km) |
| Watford to Oud-Beijerland | 205.47 mi (330.67 km) |
| Watford to Oudenbosch | 211.04 mi (339.64 km) |