| Hemel Hempstead to Port Chester (New York) | 3,415.56 mi (5,496.82 km) |
| Hemel Hempstead to Port Hueneme (California) | 5,442.53 mi (8,758.91 km) |
| Hemel Hempstead to Port Huron (Michigan) | 3,677.41 mi (5,918.21 km) |
| Hemel Hempstead to Port Lavaca (Texas) | 4,937.87 mi (7,946.73 km) |
| Hemel Hempstead to Port Neches (Texas) | 4,761.05 mi (7,662.17 km) |
| Hemel Hempstead to Port Orange (Florida) | 4,277.39 mi (6,883.79 km) |
| Hemel Hempstead to Port Orchard (Washington) | 4,775.68 mi (7,685.72 km) |
| Hemel Hempstead to Port Royal (South Carolina) | 4,104.32 mi (6,605.26 km) |
| Hemel Hempstead to Port Salerno (Florida) | 4,341.15 mi (6,986.41 km) |
| Hemel Hempstead to Port St. John (Florida) | 4,300.49 mi (6,920.97 km) |
| Hemel Hempstead to Port St. Lucie (Florida) | 4,342.81 mi (6,989.07 km) |
| Hemel Hempstead to Port Washington (New York) | 3,423.63 mi (5,509.79 km) |
| Hemel Hempstead to Port Washington (Wisconsin) | 3,866.67 mi (6,222.80 km) |
| Hemel Hempstead to Port Wentworth (Georgia) | 4,132.67 mi (6,650.90 km) |
| Hemel Hempstead to Portage (Indiana) | 3,923.22 mi (6,313.82 km) |
