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Have you ever wondered how to convert milliliters to liters? Or maybe you would like to know how many milliliters are in a liter? If so, then this article is for you. We have all the formulas you need to know about how to convert ml to l. With our handy guide, you will be able to go from ml to l in no time at all!
Table of Contents
Milliliter
Definition: A milliliter (symbol: mL) is a unit of volume that is accepted for use in the international system of units (SI). One milliliter is equal to 1 cubic centimeter (cm3), 1/1,000,000 cubic meters (m3), or 1/1000 liters.
History/Origin: The base unit of the milliliter is the liter (US spelling), spelled “litre” in SI terms. The term “litre” was originally part of the French metric system and was derived from the term “litron,” one of the older versions of the French litre. Refer to the liter page for further details.
Current use: Milliliters are used to measure the volume of many types of smaller containers in everyday use, such as plastic bottles, cans, drinking, glasses, juice and milk cartons, yogurt, toothpaste tubes, perfume/cologne bottles, etc. Many measurement devices such as graduated cylinders, beakers, pipettes, measurement cups, etc. also use the measurement of milliliters.
Liter
Definition: A liter (symbol: L) is a unit of volume that is accepted for use with the International System of Units (SI) but is technically not an SI unit. One liter is equal to 1 cubic decimeter (dm3), 1,000 cubic centimeters (cm3), or 1/1,000 cubic meters (m3).
History/origin: There was a point from 1901 to 1964 when a liter was defined as the volume of one kilogram of pure water under the conditions of maximum density at atmospheric pressure. However, due to the mass-volume relationship of water being based on a number of factors that can be cumbersome to control (temperature, pressure, purity, isotopic uniformity), as well as the discovery that the prototype of the kilogram was slightly too large (making the liter equal to 1.000028 dm3 rather than 1 dm3), the definition of the liter was reverted to its previous, and current definition.
Current use: The liter is used to measure many liquid volumes as well as to label containers containing said liquids. It is also used to measure certain non-liquid volumes such as the size of car trunks, backpacks and climbing packs, computer cases, microwaves, refrigerators, and recycling bins, as well as for expressing fuel volumes and prices in most countries around the world.
Milliliter to Liter Conversion Table
| Milliliter [mL] | Liter [L, L] |
|---|---|
| 0.01 mL | 1.0E-5 L, l |
| 0.1 mL | 0.0001 L, l |
| 1 mL | 0.001 L, l |
| 2 mL | 0.002 L, l |
| 3 mL | 0.003 L, l |
| 5 mL | 0.005 L, l |
| 10 mL | 0.01 L, l |
| 20 mL | 0.02 L, l |
| 50 mL | 0.05 L, l |
| 100 mL | 0.1 L, l |
| 1000 mL | 1 L, l |
How to Convert Milliliter to Liter
1 mL = 0.001 L, l
1 L, l = 1000 mL
Example: convert 15 mL to L, l:
15 mL = 15 × 0.001 L, l = 0.015 L, l
Milliliters to liters conversion explained
Although a liter is not an SI unit, it is accepted for use with SI, and therefore can be used with SI prefixes, as is the case with milliliters. The prefix “milli-” indicates that a milliliter is 
liters.
Essentially, SI prefixes indicate that a given unit is a multiple or a fraction of the base unit.
Since there are 1000 milliliters in 1 L, to convert a value in milliliters to liters, we need to divide by 1000. To convert a value in liters to milliliters, we need to multiply by 1000.
Examples
1. Convert 500 mL to L:
500 mL ÷ 1000 = 0.5 L
2. Convert 3.27 L to mL:
3.27 L × 1000 = 3270 mL
Conclusion
When someone refers to a unit of measurement, we often begin to think about what we can use to help us convert it. Whether we are cooking and need to use the correct amount of sugar in our cookies or we are used to talking about American measurements and then need to work with the metric system, having the right conversion tools available is key for anyone trying to perform a helpful task.