| Gahanna to Haines City (Florida) | 826.31 mi (1,329.81 km) |
| Gahanna to Halawa (Hawaii) | 4,509.89 mi (7,257.96 km) |
| Gahanna to Half Moon Bay (California) | 2,122.34 mi (3,415.58 km) |
| Gahanna to Halfway (Maryland) | 271.73 mi (437.30 km) |
| Gahanna to Hallandale Beach (Florida) | 982.64 mi (1,581.40 km) |
| Gahanna to Haltom City (Texas) | 941.36 mi (1,514.97 km) |
| Gahanna to Ham Lake (Minnesota) | 636.98 mi (1,025.11 km) |
| Gahanna to Hamilton (Ohio) | 100.41 mi (161.59 km) |
| Gahanna to Hamilton Square (New Jersey) | 433.87 mi (698.25 km) |
| Gahanna to Hammond (Indiana) | 265.72 mi (427.63 km) |
| Gahanna to Hammond (Louisiana) | 784.15 mi (1,261.96 km) |
| Gahanna to Hammonton (New Jersey) | 430.10 mi (692.18 km) |
| Gahanna to Hampton (Virginia) | 406.70 mi (654.51 km) |
| Gahanna to Hampton Bays (New York) | 546.54 mi (879.57 km) |
| Gahanna to Hamtramck (Michigan) | 164.08 mi (264.06 km) |
