Milligrams per liter to milligrams per deciliter converter above calculates how many milligrams per deciliter are in 'X' milligrams per liter (where 'X' is the number of milligrams per liter to convert to milligrams per deciliter). In order to convert a value from milligrams per liter to milligrams per deciliter (from mg/L to mg/dL) just type the number of mg/L to be converted to mg/dL and then click on the 'convert' button.