| Katy to Hamilton | 4,608.69 mi (7,416.97 km) |
| Katy to Hammersmith | 4,862.11 mi (7,824.81 km) |
| Katy to Hampton | 4,858.37 mi (7,818.79 km) |
| Katy to Hamworthy | 4,811.59 mi (7,743.50 km) |
| Katy to Handsworth | 4,766.18 mi (7,670.42 km) |
| Katy to Hanwell | 4,857.13 mi (7,816.79 km) |
| Katy to Harborne | 4,768.49 mi (7,674.14 km) |
| Katy to Harlow | 4,867.99 mi (7,834.27 km) |
| Katy to Harpenden | 4,848.10 mi (7,802.27 km) |
| Katy to Harrogate | 4,744.93 mi (7,636.23 km) |
| Katy to Harrow | 4,854.75 mi (7,812.96 km) |
| Katy to Harrow on the Hill | 4,855.78 mi (7,814.63 km) |
| Katy to Harrow Weald | 4,854.48 mi (7,812.53 km) |
| Katy to Hartlepool | 4,739.35 mi (7,627.25 km) |
| Katy to Harwich | 4,907.98 mi (7,898.63 km) |
