Acre-inches to gallons (US dry) converter on this page calculates how many gallons (US dry) are in 'X' acre-inches (where 'X' is the number of acre-inches to convert to gallons (US dry)). In order to convert a value from acre-inches to gallons (US dry) (from ac in to gal) just type the number of ac in to be converted to gal and then click on the 'convert' button.