Convert Microliter to Milliliter
Convert microliters to milliliters instantly. 1 microliter = 0.001 milliliter — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Milliliter to Microliter converter for the reverse conversion.
Units explained
Microliter
A microliter is one millionth of a liter (10⁻⁹ m³), equal to one cubic millimeter.
Formed with the SI prefix micro- applied to the liter.
Ubiquitous in molecular biology and analytical chemistry pipetting.
Metric prefix system.
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.
Microliter to Milliliter conversion formula
The relationship between microliters and milliliters:
To convert microliters to milliliters, multiply the value in microliters by 0.001. To reverse, multiply milliliters by 1000.
How to use this converter
Type a value into the calculator. The result in milliliters updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Milliliter to Microliter converter for the reverse direction.
Step-by-step: convert microliters to milliliters
- Write down the value in microliters (µL).
- Multiply that value by the factor 0.001.
- The product is the equivalent value in milliliters (mL).
- To reverse, multiply the milliliter value by 1000.
Worked examples
Example 1 — Convert 1 µL to mL:
1 × 0.001 = 0.001 mL
Example 2 — Convert 100 µL to mL:
100 × 0.001 = 0.1 mL
Real-world example — Sub-visible-light wavelength
500 microliters (the green-yellow visible band) equals 0.5 milliliters — the canonical conversion in optics between wavelength specifications and micron-scale lens-coating thicknesses.
500 µL × 0.001 = 0.5 mL
Real-world example — Spanning sub-micron to micron scale
Crossing from microliters to milliliters is the everyday workflow of microscopy and semiconductor engineering — a measurement of 1000 microliters translates to a much more compact value in milliliters that fits the scale of biological cells and process nodes.
1000 µL × 0.001 = 1 mL
Microliter to Milliliter conversion table
Standard reference values for converting microliters to milliliters:
| Microliter [µL] | Milliliter [mL] |
|---|---|
| 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 milliliters is 1 microliter?
How do I convert microliters to milliliters?
How do I convert milliliters back to microliters?
How many milliliters is 100 microliters?
Popular volume unit conversions
Convert Microliter to other volume units
Show all Microliter conversions
Metric / SI (3 units)
US Customary (Liquid) (1 units)
Imperial (UK) (1 units)
Cubic (length-derived) (1 units)
Sources & references
Conversion factor (1 µL = 0.001 mL) 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 Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.