| Ada to Hetton le Hole | 1,130.93 mi (1,820.06 km) |
| Ada to Hexham | 1,158.81 mi (1,864.92 km) |
| Ada to Heysham | 1,164.52 mi (1,874.11 km) |
| Ada to Heywood | 1,128.00 mi (1,815.34 km) |
| Ada to High Blantyre | 1,253.33 mi (2,017.03 km) |
| Ada to High Wycombe | 1,029.04 mi (1,656.07 km) |
| Ada to Highbury | 1,000.67 mi (1,610.42 km) |
| Ada to Highgate | 1,003.01 mi (1,614.19 km) |
| Ada to Hilsea | 1,030.06 mi (1,657.73 km) |
| Ada to Hinckley | 1,071.89 mi (1,725.03 km) |
| Ada to Hindley | 1,140.22 mi (1,835.01 km) |
| Ada to Hipperholme | 1,115.53 mi (1,795.27 km) |
| Ada to Hitchin | 1,015.85 mi (1,634.85 km) |
| Ada to Hockley | 971.35 mi (1,563.24 km) |
| Ada to Hoddesdon | 1,001.20 mi (1,611.28 km) |
