| Gahanna to Hamilton | 3,594.97 mi (5,785.55 km) |
| Gahanna to Hammersmith | 3,844.63 mi (6,187.33 km) |
| Gahanna to Hampton | 3,840.84 mi (6,181.23 km) |
| Gahanna to Hamworthy | 3,793.77 mi (6,105.48 km) |
| Gahanna to Handsworth | 3,749.88 mi (6,034.85 km) |
| Gahanna to Hanwell | 3,839.64 mi (6,179.30 km) |
| Gahanna to Harborne | 3,751.31 mi (6,037.15 km) |
| Gahanna to Harlow | 3,850.71 mi (6,197.12 km) |
| Gahanna to Harpenden | 3,830.77 mi (6,165.03 km) |
| Gahanna to Harrogate | 3,729.31 mi (6,001.74 km) |
| Gahanna to Harrow | 3,837.29 mi (6,175.52 km) |
| Gahanna to Harrow on the Hill | 3,838.32 mi (6,177.18 km) |
| Gahanna to Harrow Weald | 3,837.03 mi (6,175.11 km) |
| Gahanna to Hartlepool | 3,724.80 mi (5,994.48 km) |
| Gahanna to Harwich | 3,891.02 mi (6,261.98 km) |
