| Potomac to Ploermel | 3,651.90 mi (5,877.17 km) |
| Potomac to Ploufragan | 3,621.74 mi (5,828.63 km) |
| Potomac to Plougastel-Daoulas | 3,556.00 mi (5,722.82 km) |
| Potomac to Plouzane | 3,545.81 mi (5,706.44 km) |
| Potomac to Poissy | 3,817.90 mi (6,144.32 km) |
| Potomac to Poitiers | 3,805.26 mi (6,123.97 km) |
| Potomac to Pont-a-Mousson | 3,986.22 mi (6,415.20 km) |
| Potomac to Pont-du-Chateau | 3,954.37 mi (6,363.95 km) |
| Potomac to Pont-Saint-Esprit | 4,061.51 mi (6,536.37 km) |
| Potomac to Pont-Sainte-Maxence | 3,831.81 mi (6,166.70 km) |
| Potomac to Pontarlier | 4,056.64 mi (6,528.53 km) |
| Potomac to Pontchateau | 3,677.18 mi (5,917.85 km) |
| Potomac to Pontivy | 3,624.11 mi (5,832.44 km) |
| Potomac to Pontoise | 3,817.14 mi (6,143.10 km) |
| Potomac to Pornic | 3,684.27 mi (5,929.25 km) |
