| Potomac to Petite-Synthe | 3,778.46 mi (6,080.85 km) |
| Potomac to Pfastatt | 4,071.11 mi (6,551.82 km) |
| Potomac to Pia | 4,029.28 mi (6,484.50 km) |
| Potomac to Pibrac | 3,929.02 mi (6,323.14 km) |
| Potomac to Pierre-Benite | 4,026.10 mi (6,479.38 km) |
| Potomac to Pierrefitte-sur-Seine | 3,830.28 mi (6,164.24 km) |
| Potomac to Pierrelatte | 4,059.98 mi (6,533.91 km) |
| Potomac to Pierrelaye | 3,819.93 mi (6,147.59 km) |
| Potomac to Pithiviers | 3,846.28 mi (6,189.99 km) |
| Potomac to Plabennec | 3,550.77 mi (5,714.42 km) |
| Potomac to Plaisance-du-Touch | 3,931.03 mi (6,326.38 km) |
| Potomac to Plaisir | 3,816.59 mi (6,142.21 km) |
| Potomac to Plan-de-Cuques | 4,125.83 mi (6,639.88 km) |
| Potomac to Plerin | 3,621.80 mi (5,828.72 km) |
| Potomac to Ploemeur | 3,611.29 mi (5,811.81 km) |
