Gigacalories to liter-atmosphere converter on this page calculates how many liter-atmosphere are in 'X' gigacalories (where 'X' is the number of gigacalories to convert to liter-atmosphere). In order to convert a value from gigacalories to liter-atmosphere (from Gcal to L atm) simply type the number of Gcal to be converted to L atm and then click on the 'convert' button.