The calculated distance (air line) between Abbots Langley and Hemel Hempstead is approximately 4 miles respectively 6 kilometers.
By car or train, the actual journey to Hemel Hempstead is certainly longer, as only the direct route (as the crow flies) between Abbots Langley and Hemel Hempstead has been calculated here.
Air line (approximately)
6 kilometers
3 nautical miles