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