| Potomac to Hennef | 3,983.67 mi (6,411.09 km) |
| Potomac to Hennigsdorf | 4,158.97 mi (6,693.22 km) |
| Potomac to Henstedt-Ulzburg | 4,005.38 mi (6,446.04 km) |
| Potomac to Heppenheim | 4,070.85 mi (6,551.40 km) |
| Potomac to Herbolzheim | 4,077.52 mi (6,562.14 km) |
| Potomac to Herborn | 4,027.34 mi (6,481.38 km) |
| Potomac to Herbrechtingen | 4,164.00 mi (6,701.31 km) |
| Potomac to Herdecke | 3,972.57 mi (6,393.23 km) |
| Potomac to Herford | 4,001.21 mi (6,439.32 km) |
| Potomac to Herne | 3,959.90 mi (6,372.85 km) |
| Potomac to Herrenberg | 4,111.49 mi (6,616.81 km) |
| Potomac to Herrsching am Ammersee | 4,224.97 mi (6,799.42 km) |
| Potomac to Hersbruck | 4,187.39 mi (6,738.95 km) |
| Potomac to Herten | 3,955.25 mi (6,365.36 km) |
| Potomac to Herxheim | 4,068.41 mi (6,547.47 km) |
