Grams per cubic meter to milligrams per liter converter on this page calculates how many milligrams per liter are in 'X' grams per cubic meter (where 'X' is the number of grams per cubic meter to convert to milligrams per liter). In order to convert a value from grams per cubic meter to milligrams per liter (from g/m³ to mg/L) just type the number of g/m³ to be converted to mg/L and then click on the 'convert' button.