| Frederick to Hilliard (Ohio) | 307.95 mi (495.59 km) |
| Frederick to Hillsboro (Oregon) | 2,325.50 mi (3,742.53 km) |
| Frederick to Hillsborough (California) | 2,408.61 mi (3,876.28 km) |
| Frederick to Hillsborough (New Jersey) | 163.96 mi (263.86 km) |
| Frederick to Hilo (Hawaii) | 4,721.16 mi (7,597.97 km) |
| Frederick to Hilton Head Island (South Carolina) | 534.16 mi (859.65 km) |
| Frederick to Hinesville (Georgia) | 576.01 mi (927.01 km) |
| Frederick to Hinsdale (Illinois) | 574.69 mi (924.88 km) |
| Frederick to Hobart (Indiana) | 537.39 mi (864.85 km) |
| Frederick to Hobbs (New Mexico) | 1,504.39 mi (2,421.08 km) |
| Frederick to Hobe Sound (Florida) | 868.35 mi (1,397.47 km) |
| Frederick to Hoboken (New Jersey) | 200.59 mi (322.82 km) |
| Frederick to Hockessin (Delaware) | 95.34 mi (153.44 km) |
| Frederick to Hoffman Estates (Illinois) | 589.97 mi (949.46 km) |
| Frederick to Holbrook (New York) | 248.01 mi (399.14 km) |
