| Castle Rock to Hamilton | 4,401.58 mi (7,083.66 km) |
| Castle Rock to Hammersmith | 4,697.17 mi (7,559.37 km) |
| Castle Rock to Hampton | 4,695.05 mi (7,555.96 km) |
| Castle Rock to Hamworthy | 4,665.44 mi (7,508.30 km) |
| Castle Rock to Handsworth | 4,581.46 mi (7,373.14 km) |
| Castle Rock to Hanwell | 4,692.51 mi (7,551.87 km) |
| Castle Rock to Harborne | 4,598.53 mi (7,400.61 km) |
| Castle Rock to Harlow | 4,697.60 mi (7,560.05 km) |
| Castle Rock to Harpenden | 4,679.46 mi (7,530.86 km) |
| Castle Rock to Harrogate | 4,552.38 mi (7,326.35 km) |
| Castle Rock to Harrow | 4,689.18 mi (7,546.51 km) |
| Castle Rock to Harrow on the Hill | 4,690.40 mi (7,548.46 km) |
| Castle Rock to Harrow Weald | 4,688.61 mi (7,545.59 km) |
| Castle Rock to Hartlepool | 4,535.96 mi (7,299.92 km) |
| Castle Rock to Harwich | 4,730.14 mi (7,612.43 km) |
