| Hemel Hempstead to Parma Heights (Ohio) | 3,722.55 mi (5,990.87 km) |
| Hemel Hempstead to Parole (Maryland) | 3,622.09 mi (5,829.19 km) |
| Hemel Hempstead to Parsippany (New Jersey) | 3,451.96 mi (5,555.39 km) |
| Hemel Hempstead to Pasadena (California) | 5,408.77 mi (8,704.57 km) |
| Hemel Hempstead to Pasadena (Maryland) | 3,614.56 mi (5,817.08 km) |
| Hemel Hempstead to Pasadena (Texas) | 4,825.23 mi (7,765.45 km) |
| Hemel Hempstead to Pasadena Hills (Florida) | 4,369.59 mi (7,032.18 km) |
| Hemel Hempstead to Pascagoula (Mississippi) | 4,524.72 mi (7,281.83 km) |
| Hemel Hempstead to Pasco (Washington) | 4,752.07 mi (7,647.72 km) |
| Hemel Hempstead to Passaic (New Jersey) | 3,440.67 mi (5,537.23 km) |
| Hemel Hempstead to Pataskala (Ohio) | 3,822.71 mi (6,152.06 km) |
| Hemel Hempstead to Patchogue (New York) | 3,399.60 mi (5,471.13 km) |
| Hemel Hempstead to Paterson (New Jersey) | 3,439.58 mi (5,535.46 km) |
| Hemel Hempstead to Patterson (California) | 5,311.39 mi (8,547.86 km) |
| Hemel Hempstead to Pawtucket (Rhode Island) | 3,285.03 mi (5,286.75 km) |
