Micrograms per milliliter to grams per liter conversion calculator above calculates how many grams per liter are in 'X' micrograms per milliliter (where 'X' is the number of micrograms per milliliter to convert to grams per liter). In order to convert a value from micrograms per milliliter to grams per liter (from μg/mL to g/L) type the number of μg/mL to be converted to g/L and then click on the 'convert' button.