| Potomac to Police | 4,181.78 mi (6,729.93 km) |
| Potomac to Polkowice | 4,303.15 mi (6,925.25 km) |
| Potomac to Poniatowa | 4,536.86 mi (7,301.37 km) |
| Potomac to Poznan | 4,305.18 mi (6,928.52 km) |
| Potomac to Prudnik | 4,400.47 mi (7,081.88 km) |
| Potomac to Pruszcz Gdanski | 4,304.13 mi (6,926.82 km) |
| Potomac to Pruszkow | 4,454.78 mi (7,169.28 km) |
| Potomac to Przasnysz | 4,427.21 mi (7,124.91 km) |
| Potomac to Przemysl | 4,615.53 mi (7,427.98 km) |
| Potomac to Przeworsk | 4,594.83 mi (7,394.66 km) |
| Potomac to Pszczyna | 4,464.72 mi (7,185.27 km) |
| Potomac to Puck | 4,281.42 mi (6,890.28 km) |
| Potomac to Pulawy | 4,524.53 mi (7,281.52 km) |
| Potomac to Pultusk | 4,445.72 mi (7,154.69 km) |
| Potomac to Puszczykowo | 4,306.48 mi (6,930.61 km) |
