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Sources and Accuracy
Volume conversions use cubic metre as the reference unit. US liquid units, metric litres, and cubic units are converted with fixed factors stored in the unit table.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
milliliter [mL]
Definition
The milliliter is a metric volume unit equal to one thousandth of a liter.
History
Milliliters follow metric prefix scaling and are convenient for small liquid amounts.
Current use
Milliliters are used for medicine, cooking, beverages, lab work, cosmetics, and product labels.
liter [L]
Definition
The liter is a metric volume unit equal to one cubic decimeter, or 0.001 cubic meters.
History
The liter became widely used with metric measurement because it is convenient for liquid and container volumes.
Current use
Liters are used for beverages, fuel, tanks, laboratory liquids, cooking, and product packaging.