| Portsmouth to Perth | 397.97 mi (640.47 km) |
| Portsmouth to Peterborough | 126.97 mi (204.34 km) |
| Portsmouth to Peterhead | 464.00 mi (746.74 km) |
| Portsmouth to Peterlee | 273.40 mi (439.99 km) |
| Portsmouth to Petersfield | 15.16 mi (24.39 km) |
| Portsmouth to Pinner | 62.23 mi (100.15 km) |
| Portsmouth to Pitsea | 86.77 mi (139.64 km) |
| Portsmouth to Plumstead | 69.56 mi (111.94 km) |
| Portsmouth to Plymouth | 137.32 mi (221.00 km) |
| Portsmouth to Plympton | 133.18 mi (214.33 km) |
| Portsmouth to Plymstock | 135.33 mi (217.80 km) |
| Portsmouth to Polegate | 58.13 mi (93.56 km) |
| Portsmouth to Ponders End | 73.48 mi (118.26 km) |
| Portsmouth to Pont-y-pwl | 104.78 mi (168.63 km) |
| Portsmouth to Pontardulais | 142.13 mi (228.73 km) |
