Barrels (US dry) to acre-inches conversion calculator above calculates how many acre-inches are in 'X' barrels (US dry) (where 'X' is the number of barrels (US dry) to convert to acre-inches). In order to convert a value from barrels (US dry) to acre-inches (from bl to ac in) just type the number of bl to be converted to ac in and then click on the 'convert' button.