| River Falls to Perth | 3,705.26 mi (5,963.04 km) |
| River Falls to Peterborough | 3,949.99 mi (6,356.89 km) |
| River Falls to Peterhead | 3,723.20 mi (5,991.91 km) |
| River Falls to Peterlee | 3,832.41 mi (6,167.66 km) |
| River Falls to Petersfield | 3,983.25 mi (6,410.42 km) |
| River Falls to Pinner | 3,980.93 mi (6,406.68 km) |
| River Falls to Pitsea | 4,013.92 mi (6,459.78 km) |
| River Falls to Plumstead | 4,002.07 mi (6,440.72 km) |
| River Falls to Plymouth | 3,887.98 mi (6,257.10 km) |
| River Falls to Plympton | 3,890.88 mi (6,261.76 km) |
| River Falls to Plymstock | 3,890.47 mi (6,261.10 km) |
| River Falls to Polegate | 4,033.16 mi (6,490.74 km) |
| River Falls to Ponders End | 3,991.28 mi (6,423.34 km) |
| River Falls to Pont-y-pwl | 3,880.70 mi (6,245.39 km) |
| River Falls to Pontardulais | 3,843.85 mi (6,186.07 km) |
