| Hemel Hempstead to Amersham | 7.75 mi (12.48 km) |
| Hemel Hempstead to Amesbury | 69.19 mi (111.35 km) |
| Hemel Hempstead to Ammanford | 150.66 mi (242.47 km) |
| Hemel Hempstead to Ampthill | 18.93 mi (30.47 km) |
| Hemel Hempstead to Andover | 57.51 mi (92.56 km) |
| Hemel Hempstead to Annan | 251.17 mi (404.22 km) |
| Hemel Hempstead to Antrim | 313.25 mi (504.12 km) |
| Hemel Hempstead to Appleton | 140.67 mi (226.39 km) |
| Hemel Hempstead to Appley Bridge | 157.55 mi (253.55 km) |
| Hemel Hempstead to Arbroath | 343.05 mi (552.08 km) |
| Hemel Hempstead to Ardrossan | 322.02 mi (518.24 km) |
| Hemel Hempstead to Armadale | 315.26 mi (507.35 km) |
| Hemel Hempstead to Armthorpe | 125.57 mi (202.08 km) |
| Hemel Hempstead to Arnold | 90.87 mi (146.24 km) |
| Hemel Hempstead to Ascot | 25.31 mi (40.73 km) |
