| Potomac to Hovelhof | 4,008.78 mi (6,451.50 km) |
| Potomac to Hoxter | 4,038.12 mi (6,498.73 km) |
| Potomac to Hoyerswerda | 4,236.45 mi (6,817.91 km) |
| Potomac to Huckelhoven | 3,933.54 mi (6,330.41 km) |
| Potomac to Huckeswagen | 3,975.97 mi (6,398.70 km) |
| Potomac to Hude | 3,965.80 mi (6,382.33 km) |
| Potomac to Hullhorst | 3,996.38 mi (6,431.56 km) |
| Potomac to Hunfeld | 4,085.82 mi (6,575.50 km) |
| Potomac to Hungen | 4,057.25 mi (6,529.51 km) |
| Potomac to Hunxe | 3,939.67 mi (6,340.29 km) |
| Potomac to Hurtgenwald | 3,949.25 mi (6,355.71 km) |
| Potomac to Hurth | 3,964.78 mi (6,380.69 km) |
| Potomac to Husum | 3,951.42 mi (6,359.19 km) |
| Potomac to Ibbenburen | 3,959.69 mi (6,372.50 km) |
| Potomac to Ichenhausen | 4,177.88 mi (6,723.64 km) |
