Femtoliters to Attoliters Converter
Enter the volume in femtoliters below to convert it to attoliters.
Convert Femtoliters to Attoliters
Enter a value in femtoliters (fL) to convert to attoliters (aL).
Femtoliter to Attoliter Conversion Table
Table showing various femtoliter measurements converted to attoliters. Click any preset value or arrow to load it into the converter.
How to Convert Femtoliters to Attoliters
To convert femtoliters to attoliters, multiply the volume by the following conversion ratio: 1,000 attoliters/femtoliter.
Since one femtoliter is equal to 1,000 attoliters, you can use this simple formula to convert:
The volume in attoliters is equal to the volume in femtoliters multiplied by 1,000.
For example, here's how to convert 5 femtoliters to attoliters using the formula above.
How Many Attoliters Are in a Femtoliter?
There are 1,000 attoliters in a femtoliter, which is why we use this value in the formula above.
Our femtoliter to attoliter calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Femtoliters and attoliters are both units used to measure volume. Keep reading to learn more about each unit.
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). [1]
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.
What Is an Attoliter?
An attoliter is a unit of volume equal to 1/999,999,999,999,999,900 of a liter (1e-18 L). 10⁻¹⁸ liters. [2]
The attoliter is classified as a metric and SI-compatible unit of volume. Attoliters can be abbreviated as aL; for example, 1 attoliter can be written as 1 aL.
When working with attoliters (aL) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, attoliters (aL) 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 femtoliters (fL) and attoliters (aL), keep full floating-point precision (1 fL = 1,000 aL; 1 aL = 0.001 fL) during intermediate calculations and round only the final attoliter figure to match your instrument tolerance.
More Femtoliter & Attoliter Conversions
Need to calculate in the opposite direction? Use our attoliters to femtoliters calculator to switch your starting unit immediately. You can also explore related tools such as converting attoliters to femtoliters, converting liters to gallons (us), or converting gallons (us) to liters.
Convert from Femtoliters
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 — Femtoliters (fL) to Attoliters (aL)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Femtoliter (fL) & Attoliter (aL)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (fL to aL)