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