| Ada to Hammersmith | 1,004.82 mi (1,617.10 km) |
| Ada to Hampton | 1,009.56 mi (1,624.74 km) |
| Ada to Hamworthy | 1,069.06 mi (1,720.49 km) |
| Ada to Handsworth | 1,091.17 mi (1,756.07 km) |
| Ada to Hanwell | 1,009.89 mi (1,625.26 km) |
| Ada to Harborne | 1,093.56 mi (1,759.91 km) |
| Ada to Harlow | 995.73 mi (1,602.47 km) |
| Ada to Harpenden | 1,016.17 mi (1,635.38 km) |
| Ada to Harrogate | 1,111.72 mi (1,789.14 km) |
| Ada to Harrow | 1,011.58 mi (1,627.97 km) |
| Ada to Harrow on the Hill | 1,010.68 mi (1,626.53 km) |
| Ada to Harrow Weald | 1,011.64 mi (1,628.08 km) |
| Ada to Hartlepool | 1,118.51 mi (1,800.06 km) |
| Ada to Harwich | 952.75 mi (1,533.30 km) |
| Ada to Haslemere | 1,018.62 mi (1,639.31 km) |
