Cubic decimeters to gills (US) conversion calculator above calculates how many gills (US) are in 'X' cubic decimeters (where 'X' is the number of cubic decimeters to convert to gills (US)). In order to convert a value from cubic decimeters to gills (US) type the number of dm³ to be converted to gills (US) and then click on the 'convert' button.