| Middle River to Perth | 3,400.45 mi (5,472.49 km) |
| Middle River to Peterborough | 3,593.02 mi (5,782.41 km) |
| Middle River to Peterhead | 3,444.45 mi (5,543.31 km) |
| Middle River to Peterlee | 3,507.20 mi (5,644.29 km) |
| Middle River to Petersfield | 3,597.88 mi (5,790.23 km) |
| Middle River to Pinner | 3,607.57 mi (5,805.82 km) |
| Middle River to Pitsea | 3,644.46 mi (5,865.20 km) |
| Middle River to Plumstead | 3,629.36 mi (5,840.90 km) |
| Middle River to Plymouth | 3,477.37 mi (5,596.28 km) |
| Middle River to Plympton | 3,480.92 mi (5,602.00 km) |
| Middle River to Plymstock | 3,479.86 mi (5,600.29 km) |
| Middle River to Polegate | 3,650.67 mi (5,875.18 km) |
| Middle River to Ponders End | 3,620.40 mi (5,826.47 km) |
| Middle River to Pont-y-pwl | 3,496.81 mi (5,627.58 km) |
| Middle River to Pontardulais | 3,455.60 mi (5,561.25 km) |
