| Castle Rock to Perth | 4,398.56 mi (7,078.79 km) |
| Castle Rock to Peterborough | 4,653.07 mi (7,488.39 km) |
| Castle Rock to Peterhead | 4,409.46 mi (7,096.35 km) |
| Castle Rock to Peterlee | 4,529.28 mi (7,289.16 km) |
| Castle Rock to Petersfield | 4,692.09 mi (7,551.19 km) |
| Castle Rock to Pinner | 4,687.30 mi (7,543.48 km) |
| Castle Rock to Pitsea | 4,719.18 mi (7,594.79 km) |
| Castle Rock to Plumstead | 4,708.13 mi (7,577.01 km) |
| Castle Rock to Plymouth | 4,602.31 mi (7,406.70 km) |
| Castle Rock to Plympton | 4,605.07 mi (7,411.14 km) |
| Castle Rock to Plymstock | 4,604.78 mi (7,410.67 km) |
| Castle Rock to Polegate | 4,741.02 mi (7,629.93 km) |
| Castle Rock to Ponders End | 4,697.04 mi (7,559.15 km) |
| Castle Rock to Pont-y-pwl | 4,590.06 mi (7,386.99 km) |
| Castle Rock to Pontardulais | 4,554.35 mi (7,329.52 km) |
