| Catonsville to Hamilton | 3,402.72 mi (5,476.16 km) |
| Catonsville to Hammersmith | 3,633.00 mi (5,846.76 km) |
| Catonsville to Hampton | 3,628.68 mi (5,839.79 km) |
| Catonsville to Hamworthy | 3,576.09 mi (5,755.16 km) |
| Catonsville to Handsworth | 3,546.74 mi (5,707.93 km) |
| Catonsville to Hanwell | 3,627.96 mi (5,838.63 km) |
| Catonsville to Harborne | 3,542.70 mi (5,701.43 km) |
| Catonsville to Harlow | 3,640.97 mi (5,859.58 km) |
| Catonsville to Harpenden | 3,620.66 mi (5,826.88 km) |
| Catonsville to Harrogate | 3,529.40 mi (5,680.02 km) |
| Catonsville to Harrow | 3,625.98 mi (5,835.45 km) |
| Catonsville to Harrow on the Hill | 3,626.94 mi (5,836.99 km) |
| Catonsville to Harrow Weald | 3,625.84 mi (5,835.22 km) |
| Catonsville to Hartlepool | 3,529.09 mi (5,679.52 km) |
| Catonsville to Harwich | 3,683.46 mi (5,927.95 km) |
