| Piqua to Hillcrest Heights (Maryland) | 398.50 mi (641.32 km) |
| Piqua to Hilliard (Ohio) | 57.97 mi (93.29 km) |
| Piqua to Hillsboro (Oregon) | 1,975.33 mi (3,178.99 km) |
| Piqua to Hillsborough (California) | 2,042.90 mi (3,287.73 km) |
| Piqua to Hillsborough (New Jersey) | 505.58 mi (813.65 km) |
| Piqua to Hilo (Hawaii) | 4,355.46 mi (7,009.44 km) |
| Piqua to Hilton Head Island (South Carolina) | 583.42 mi (938.92 km) |
| Piqua to Hinesville (Georgia) | 593.67 mi (955.42 km) |
| Piqua to Hinsdale (Illinois) | 223.38 mi (359.50 km) |
| Piqua to Hobart (Indiana) | 184.23 mi (296.48 km) |
| Piqua to Hobbs (New Mexico) | 1,166.57 mi (1,877.41 km) |
| Piqua to Hobe Sound (Florida) | 933.59 mi (1,502.47 km) |
| Piqua to Hoboken (New Jersey) | 538.42 mi (866.50 km) |
| Piqua to Hockessin (Delaware) | 453.96 mi (730.57 km) |
| Piqua to Hoffman Estates (Illinois) | 242.36 mi (390.04 km) |
