| Hemel Hempstead to Petersburg (Virginia) | 3,737.64 mi (6,015.15 km) |
| Hemel Hempstead to Pflugerville (Texas) | 4,879.68 mi (7,853.09 km) |
| Hemel Hempstead to Pharr (Texas) | 5,129.11 mi (8,254.51 km) |
| Hemel Hempstead to Phelan (California) | 5,373.06 mi (8,647.10 km) |
| Hemel Hempstead to Phenix City (Alabama) | 4,276.74 mi (6,882.75 km) |
| Hemel Hempstead to Philadelphia (Pennsylvania) | 3,518.80 mi (5,662.96 km) |
| Hemel Hempstead to Phillipsburg (New Jersey) | 3,490.78 mi (5,617.86 km) |
| Hemel Hempstead to Phoenix (Arizona) | 5,241.62 mi (8,435.57 km) |
| Hemel Hempstead to Phoenixville (Pennsylvania) | 3,528.83 mi (5,679.11 km) |
| Hemel Hempstead to Picayune (Mississippi) | 4,561.67 mi (7,341.30 km) |
| Hemel Hempstead to Pickerington (Ohio) | 3,830.39 mi (6,164.42 km) |
| Hemel Hempstead to Pico Rivera (California) | 5,416.87 mi (8,717.61 km) |
| Hemel Hempstead to Piedmont (California) | 5,323.28 mi (8,567.00 km) |
| Hemel Hempstead to Pierre (South Dakota) | 4,265.59 mi (6,864.81 km) |
| Hemel Hempstead to Pike Creek Valley (Delaware) | 3,554.12 mi (5,719.80 km) |
