| Watford to Ploermel | 272.28 mi (438.19 km) |
| Watford to Ploufragan | 243.21 mi (391.41 km) |
| Watford to Plougastel-Daoulas | 287.28 mi (462.34 km) |
| Watford to Plouzane | 293.25 mi (471.94 km) |
| Watford to Poissy | 216.94 mi (349.14 km) |
| Watford to Poitiers | 352.22 mi (566.84 km) |
| Watford to Pont-a-Mousson | 342.18 mi (550.68 km) |
| Watford to Pont-du-Chateau | 437.28 mi (703.73 km) |
| Watford to Pont-Saint-Esprit | 561.62 mi (903.84 km) |
| Watford to Pont-Sainte-Maxence | 209.35 mi (336.92 km) |
| Watford to Pontarlier | 447.11 mi (719.56 km) |
| Watford to Pontchateau | 301.13 mi (484.62 km) |
| Watford to Pontivy | 272.86 mi (439.13 km) |
| Watford to Pontoise | 210.87 mi (339.36 km) |
| Watford to Pornic | 322.88 mi (519.63 km) |
