Convert Milliliter to Liter
Convert milliliters to liters instantly. 1 milliliter = 0.001 liter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Liter to Milliliter converter for the reverse conversion.
Units explained
Milliliter
A milliliter is one thousandth of a liter, exactly equal to one cubic centimeter.
Formed with the SI prefix milli- applied to the liter.
The standard small-volume unit in cooking, medicine and the laboratory.
Metric prefix system.
Liter
The liter is a metric unit of volume equal to one cubic decimeter (0.001 m³). It is the everyday metric volume unit.
Introduced in France in 1795; redefined in 1964 as exactly one cubic decimeter.
The world's common unit for beverages, fuel, and household liquids.
France, 1795; CGPM 1964.
Milliliter to Liter conversion formula
The relationship between milliliters and liters:
To convert milliliters to liters, multiply the value in milliliters by 0.001. To reverse, multiply liters by 1000.
How to use this converter
Type a value into the calculator. The result in liters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Liter to Milliliter converter for the reverse direction.
Step-by-step: convert milliliters to liters
- Write down the value in milliliters (mL).
- Multiply that value by the factor 0.001.
- The product is the equivalent value in liters (L).
- To reverse, multiply the liter value by 1000.
Worked examples
Example 1 — Convert 1 mL to L:
1 × 0.001 = 0.001 L
Example 2 — Convert 100 mL to L:
100 × 0.001 = 0.1 L
Real-world example — Plastic film and laminate thickness
A 500-milliliter sheet is a typical spec for ID-card laminates and film overlays. Converting to liters aligns the value with the unit most CAD systems and material datasheets prefer.
500 mL × 0.001 = 0.5 L
Real-world example — Packaging gauge
A 4-milliliter plastic bag thickness is a common spec for grocery and freezer bags. Converting from milliliters to liters is what packaging buyers do whenever they bridge US and metric supplier quotes.
4 mL × 0.001 = 0.004 L
Milliliter to Liter conversion table
Standard reference values for converting milliliters to liters:
| Milliliter [mL] | Liter [L] |
|---|---|
| 0.01 | 1e-5 |
| 0.1 | 0.0001 |
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 30 | 0.03 |
| 40 | 0.04 |
| 50 | 0.05 |
| 100 | 0.1 |
| 500 | 0.5 |
| 1000 | 1 |
Frequently asked questions
How many liters is 1 milliliter?
How do I convert milliliters to liters?
How do I convert liters back to milliliters?
How many liters is 100 milliliters?
Popular volume unit conversions
Convert Milliliter to other volume units
Show all Milliliter conversions
Metric / SI (13 units)
US Customary (Liquid) (15 units)
US Customary (Dry) (5 units)
Imperial (UK) (14 units)
Cubic (length-derived) (4 units)
Cooking / Culinary (5 units)
Sources & references
Conversion factor (1 mL = 0.001 L) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.