Quarts (US liquid) to barrels (oil) conversion calculator above calculates how many barrels (oil) are in 'X' quarts (US liquid) (where 'X' is the number of quarts (US liquid) to convert to barrels (oil)). In order to convert a value from quarts (US liquid) to barrels (oil) (from qt to bbl) just type the number of qt to be converted to bbl and then click on the 'convert' button.