| Frederick to Hanahan (South Carolina) | 471.91 mi (759.46 km) |
| Frederick to Hanford (California) | 2,292.56 mi (3,689.52 km) |
| Frederick to Hannibal (Missouri) | 744.04 mi (1,197.42 km) |
| Frederick to Hanover (Pennsylvania) | 34.75 mi (55.92 km) |
| Frederick to Hanover Park (Illinois) | 588.47 mi (947.06 km) |
| Frederick to Happy Valley (Oregon) | 2,305.55 mi (3,710.42 km) |
| Frederick to Harker Heights (Texas) | 1,275.84 mi (2,053.27 km) |
| Frederick to Harlingen (Texas) | 1,485.34 mi (2,390.42 km) |
| Frederick to Harper Woods (Michigan) | 354.82 mi (571.03 km) |
| Frederick to Harrisburg (North Carolina) | 335.53 mi (539.98 km) |
| Frederick to Harrisburg (Pennsylvania) | 64.58 mi (103.93 km) |
| Frederick to Harrison (Arkansas) | 883.60 mi (1,422.01 km) |
| Frederick to Harrison (New Jersey) | 194.66 mi (313.27 km) |
| Frederick to Harrison (New York) | 223.70 mi (360.01 km) |
| Frederick to Harrison (Ohio) | 394.01 mi (634.10 km) |
