Converting liters (l) to milliliters (ml) is a very simple mathematical operation. All that needs to be done to convert a quantity expressed in liters into milliliters is to multiply the number of liters by 1,000.
Steps
Method 1 of 2: Convert Liters to Milliliters
Step 1. Note that the prefix "milli" means a thousand
A great trick to remember the conversion rate between liters and milliliters is to refer to the meaning of the suffix of the word milliliter. Since "milli" means one thousand, one deduces that a milliliter is equal to 1 / 1,000 of a liter.
Step 2. Multiply the number of liters (l) by 1,000 to get the equivalent in milliliters (ml)
The number of milliliters existing in a given amount of liters is 1,000 times higher.
For example, assume you need to convert 3 liters to milliliters. In this case you will simply have to multiply 3 by 1,000 to get 3,000ml. At this point the following equation is true: 3 l = 3,000 ml
Step 3. Remember that both liters and milliliters are units of volume
The "volume", which is also referred to by the term capacity in the case of liquids, defines the three-dimensional space occupied by an object. In most cases, liters and milliliters are units of measurement used to indicate the volume of a liquid or gas.
Method 2 of 2: Convert Milliliters to Liters
Step 1. Remember that the milliliter (ml) is a smaller unit of measurement than the liter (l) and that the prefix "milli" indicates a quantity equal to one thousand, in other words a millimeter is equal to one thousandth of a liter
For this reason it can be deduced that the number of liters will be less than the corresponding value of milliliters.
Step 2. Divide the number of milliliters (ml) by 1,000 to get the equivalent in liters (l)
Remember that 1 liter is equal to 1,000 ml.
For example, assume you need to convert 7,500 ml into liters. Simply divide 7,500 by 1,000 to get 7.5L. At this point you can say that: 7,500 ml = 7, 5 l
Step 3. Note that milliliter and liter are units of the metric system
If you are not very confident in measuring volumes in liters and milliliters, it means that you most likely live in a part of the world where a different measurement system is used. For example, in the United States of America, "pint", "quarter" or "gallon" can be used to measure the volume of a liquid.