Barrels (UK) to decaliters conversion calculator above calculates how many decaliters are in 'X' barrels (UK) (where 'X' is the number of barrels (UK) to convert to decaliters). In order to convert a value from barrels (UK) to decaliters (from bl to daL) simply type the number of bl to be converted to daL and then click on the 'convert' button.