| Potomac to Pornichet | 3,670.23 mi (5,906.66 km) |
| Potomac to Port-de-Bouc | 4,102.74 mi (6,602.71 km) |
| Potomac to Portes-les-Valence | 4,053.06 mi (6,522.76 km) |
| Potomac to Portet-sur-Garonne | 3,937.28 mi (6,336.44 km) |
| Potomac to Porto-Vecchio | 4,354.55 mi (7,007.98 km) |
| Potomac to Provins | 3,880.47 mi (6,245.01 km) |
| Potomac to Puteaux | 3,827.19 mi (6,159.27 km) |
| Potomac to Quetigny | 3,991.51 mi (6,423.71 km) |
| Potomac to Queven | 3,610.77 mi (5,810.98 km) |
| Potomac to Quimper | 3,576.25 mi (5,755.42 km) |
| Potomac to Quimperle | 3,602.97 mi (5,798.41 km) |
| Potomac to Quincy-sous-Senart | 3,845.19 mi (6,188.23 km) |
| Potomac to Raismes | 3,840.48 mi (6,180.66 km) |
| Potomac to Rambouillet | 3,816.12 mi (6,141.45 km) |
| Potomac to Ramonville-Saint-Agne | 3,939.74 mi (6,340.40 km) |
