Microliters to Femtoliters Converter
Enter the volume in microliters below to convert it to femtoliters.
Convert Microliters to Femtoliters
Enter a value in microliters (µL) to convert to femtoliters (fL).
Microliter to Femtoliter Conversion Table
Table showing various microliter measurements converted to femtoliters. Click any preset value or arrow to load it into the converter.
How to Convert Microliters to Femtoliters
To convert microliters to femtoliters, multiply the volume by the following conversion ratio: 999,999,999.9999999 femtoliters/microliter.
Since one microliter is equal to 999,999,999.9999999 femtoliters, you can use this simple formula to convert:
The volume in femtoliters is equal to the volume in microliters multiplied by 999,999,999.9999999.
For example, here's how to convert 5 microliters to femtoliters using the formula above.
How Many Femtoliters Are in a Microliter?
There are 999,999,999.9999999 femtoliters in a microliter, which is why we use this value in the formula above.
Our microliter to femtoliter calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Microliters and femtoliters are both units used to measure volume. Keep reading to learn more about each unit.
What Is a Microliter?
A microliter is a unit of volume equal to 1/1,000,000 of a liter (0.000001 L). One-millionth of a liter (1 cubic millimeter). [1]
The microliter is classified as a metric and SI-compatible unit of volume. Microliters can be abbreviated as µL; for example, 1 microliter can be written as 1 µL.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the microliter (µL) a convenient decimal multiple of the liter (L).
In practice, microliters (µL) are widely used across fine-tolerance laboratory, analytical, and micro-scale volume measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Femtoliter?
A femtoliter is a unit of volume equal to 1e-15 liters (L), the base unit for volume. 10⁻¹⁵ liters (1 µm³), used in hematology (mean corpuscular volume). [2]
The femtoliter is classified as a metric and SI-compatible unit of volume. Femtoliters can be abbreviated as fL; for example, 1 femtoliter can be written as 1 fL.
In the metric system, "femto" is the standard SI prefix for quadrillionths, or 10⁻¹⁵. This makes the femtoliter (fL) a convenient decimal multiple of the liter (L).
In practice, femtoliters (fL) 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 microliters (µL) and femtoliters (fL), keep full floating-point precision (1 µL = 999,999,999.9999999 fL; 1 fL = 1e-9 µL) during intermediate calculations and round only the final femtoliter figure to match your instrument tolerance.
More Microliter & Femtoliter Conversions
Need to calculate in the opposite direction? Use our femtoliters to microliters calculator to switch your starting unit immediately. You can also explore related tools such as converting femtoliters to microliters, converting liters to gallons (us), or converting gallons (us) to liters.
Convert from Microliters
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Microliters (µL) to Femtoliters (fL)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Microliter (µL) & Femtoliter (fL)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (µL to fL)