Microliters to Attoliters Converter
Enter the volume in microliters below to convert it to attoliters.
Convert Microliters to Attoliters
Enter a value in microliters (µL) to convert to attoliters (aL).
Microliter to Attoliter Conversion Table
Table showing various microliter measurements converted to attoliters. Click any preset value or arrow to load it into the converter.
| Microliters (µL) | Attoliters (aL) |
|---|---|
| 0.0000001 µL | 100,000 aL |
| 0.0000002 µL | 200,000 aL |
| 0.0000003 µL | 300,000 aL |
| 0.0000004 µL | 400,000 aL |
| 0.0000005 µL | 500,000 aL |
| 0.0000006 µL | 600,000 aL |
| 0.0000007 µL | 700,000 aL |
| 0.0000008 µL | 800,000 aL |
| 0.0000009 µL | 900,000 aL |
| 0.00000001 µL | 10,000 aL |
How to Convert Microliters to Attoliters
To convert microliters to attoliters, multiply the volume by the following conversion ratio: 999,999,999,999.9999 attoliters/microliter.
Since one microliter is equal to 999,999,999,999.9999 attoliters, you can use this simple formula to convert:
The volume in attoliters is equal to the volume in microliters multiplied by 999,999,999,999.9999.
For example, here's how to convert 5 microliters to attoliters using the formula above.
How Many Attoliters Are in a Microliter?
There are 999,999,999,999.9999 attoliters in a microliter, which is why we use this value in the formula above.
Our microliter to attoliter calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Microliters and attoliters 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 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 microliters (µL) and attoliters (aL), keep full floating-point precision (1 µL = 999,999,999,999.9999 aL; 1 aL = 1e-12 µL) during intermediate calculations and round only the final attoliter figure to match your instrument tolerance.
More Microliter & Attoliter Conversions
Need to calculate in the opposite direction? Use our attoliters to microliters calculator to switch your starting unit immediately. You can also explore related tools such as converting attoliters 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 Attoliters (aL)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Microliter (µL) & Attoliter (aL)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (µL to aL)