| Mercer Island to Perth | 4,437.62 mi (7,141.65 km) |
| Mercer Island to Peterborough | 4,723.33 mi (7,601.47 km) |
| Mercer Island to Peterhead | 4,419.83 mi (7,113.03 km) |
| Mercer Island to Peterlee | 4,576.96 mi (7,365.91 km) |
| Mercer Island to Petersfield | 4,789.93 mi (7,708.64 km) |
| Mercer Island to Pinner | 4,772.37 mi (7,680.39 km) |
| Mercer Island to Pitsea | 4,797.10 mi (7,720.18 km) |
| Mercer Island to Plumstead | 4,790.61 mi (7,709.75 km) |
| Mercer Island to Plymouth | 4,735.82 mi (7,621.57 km) |
| Mercer Island to Plympton | 4,737.61 mi (7,624.45 km) |
| Mercer Island to Plymstock | 4,738.06 mi (7,625.17 km) |
| Mercer Island to Polegate | 4,831.35 mi (7,775.31 km) |
| Mercer Island to Ponders End | 4,778.51 mi (7,690.27 km) |
| Mercer Island to Pont-y-pwl | 4,695.44 mi (7,556.58 km) |
| Mercer Island to Pontardulais | 4,667.72 mi (7,511.97 km) |
