| Potomac to Halstenbek | 4,003.45 mi (6,442.94 km) |
| Potomac to Halver | 3,979.87 mi (6,404.99 km) |
| Potomac to Hambuhren | 4,037.14 mi (6,497.15 km) |
| Potomac to Hamburg | 4,011.89 mi (6,456.51 km) |
| Potomac to Hameln | 4,028.62 mi (6,483.44 km) |
| Potomac to Hamm | 3,979.87 mi (6,404.98 km) |
| Potomac to Hammelburg | 4,107.49 mi (6,610.37 km) |
| Potomac to Hamminkeln | 3,930.29 mi (6,325.19 km) |
| Potomac to Hanau | 4,067.67 mi (6,546.29 km) |
| Potomac to Handewitt | 3,953.26 mi (6,362.15 km) |
| Potomac to Hannover | 4,034.53 mi (6,492.94 km) |
| Potomac to Hannoversch Munden | 4,059.26 mi (6,532.76 km) |
| Potomac to Haren | 3,927.21 mi (6,320.23 km) |
| Potomac to Harrislee | 3,954.64 mi (6,364.37 km) |
| Potomac to Harsefeld | 3,995.86 mi (6,430.71 km) |
