Liters to Milliliters Converter
Enter the volume in liters below to convert it to milliliters.
Convert Liters to Milliliters
Enter a value in liters (L) to convert to milliliters (mL).
Liter to Milliliter Conversion Table
Table showing various liter measurements converted to milliliters. Click any preset value or arrow to load it into the converter.
How to Convert Liters to Milliliters
To convert liters to milliliters, multiply the volume by the following conversion ratio: 1,000 milliliters/liter.
Since one liter is equal to 1,000 milliliters, you can use this simple formula to convert:
The volume in milliliters is equal to the volume in liters multiplied by 1,000.
For example, here's how to convert 1.5 liters to milliliters using the formula above.
How Many Milliliters Are in a Liter?
There are 1,000 milliliters in a liter, which is why we use this value in the formula above.
Our liter to milliliter calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Liters and milliliters are both units used to measure volume. Keep reading to learn more about each unit.
What Is a Liter?
Metric unit of volume equal to 1 cubic decimeter (1,000 mL). It serves as a primary reference unit for measuring volume across scientific and practical applications. [1]
The liter is classified as a metric and SI-compatible unit of volume. Liters can be abbreviated as L; for example, 1 liter can be written as 1 L.
As the primary coherent reference unit for volume in this category, all other volume units are mathematically anchored to the liter (L).
In practice, liters (L) are widely used across standard volume applications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Milliliter?
A milliliter is a unit of volume equal to 1/1,000 of a liter (0.001 L). One-thousandth of a liter, identical to 1 cubic centimeter (cc). [2]
The milliliter is classified as a metric and SI-compatible unit of volume. Milliliters can be abbreviated as mL; for example, 1 milliliter can be written as 1 mL.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the milliliter (mL) a convenient decimal multiple of the liter (L).
In practice, milliliters (mL) are widely used across fine-tolerance laboratory, analytical, and micro-scale volume measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting volume between liters (L) and milliliters (mL), keep full floating-point precision (1 L = 1,000 mL; 1 mL = 0.001 L) during intermediate calculations and round only the final milliliter figure to match your instrument tolerance.
More Liter & Milliliter Conversions
Need to calculate in the opposite direction? Use our milliliters to liters converter (mL to L) to switch your starting unit immediately. You can also explore related tools such as converting fluid ounces (us) to milliliters, converting cups (us) to milliliters, or converting liters to gallons (us).
Convert from Liters
Weight and volume require ingredient density (g/mL). Choose a USDA FoodData Central verified ingredient below:
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Liters (L) to Milliliters (mL)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Liter (L) & Milliliter (mL)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (L to mL)