| Hemel Hempstead to Pell City (Alabama) | 4,272.62 mi (6,876.12 km) |
| Hemel Hempstead to Pella (Iowa) | 4,147.59 mi (6,674.89 km) |
| Hemel Hempstead to Pembroke Pines (Florida) | 4,404.69 mi (7,088.66 km) |
| Hemel Hempstead to Pendleton (Oregon) | 4,775.66 mi (7,685.68 km) |
| Hemel Hempstead to Pensacola (Florida) | 4,465.69 mi (7,186.83 km) |
| Hemel Hempstead to Peoria (Arizona) | 5,236.97 mi (8,428.09 km) |
| Hemel Hempstead to Peoria (Illinois) | 4,055.17 mi (6,526.16 km) |
| Hemel Hempstead to Perris (California) | 5,400.39 mi (8,691.09 km) |
| Hemel Hempstead to Perry (Georgia) | 4,223.12 mi (6,796.46 km) |
| Hemel Hempstead to Perry Hall (Maryland) | 3,600.19 mi (5,793.95 km) |
| Hemel Hempstead to Perrysburg (Ohio) | 3,789.08 mi (6,097.93 km) |
| Hemel Hempstead to Perth Amboy (New Jersey) | 3,461.22 mi (5,570.30 km) |
| Hemel Hempstead to Peru (Indiana) | 3,919.31 mi (6,307.51 km) |
| Hemel Hempstead to Petal (Mississippi) | 4,502.76 mi (7,246.49 km) |
| Hemel Hempstead to Petaluma (California) | 5,310.49 mi (8,546.41 km) |
