Bushels (US) to gallons (US dry) conversion calculator above calculates how many gallons (US dry) are in 'X' bushels (US) (where 'X' is the number of bushels (US) to convert to gallons (US dry)). In order to convert a value from bushels (US) to gallons (US dry) (from bu to gal) simply type the number of bu to be converted to gal and then click on the 'convert' button.