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Milliliters to Attoliters Converter

Enter the volume in milliliters below to convert it to attoliters.

Convert Milliliters to Attoliters

Enter a value in milliliters (mL) to convert to attoliters (aL).

Result
•
5e+15attoliters
5 mL = 5e+15 aL
Result updates automatically
Get Widget
Equivalent Measurements Across UnitsFor 5 mL
Liters0.005 L
Suggested Conversions
Reference:NIST OWM (SI Units — Volume)
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Milliliter to Attoliter Conversion Table

Table showing various milliliter measurements converted to attoliters. Click any preset value or arrow to load it into the converter.

Milliliters (mL)Attoliters (aL)
0.0000001 mL100,000,000 aL
0.0000002 mL200,000,000 aL
0.0000003 mL300,000,000 aL
0.0000004 mL400,000,000 aL
0.0000005 mL500,000,000 aL
0.0000006 mL600,000,000 aL
0.0000007 mL700,000,000 aL
0.0000008 mL800,000,000 aL
0.0000009 mL900,000,000 aL
0.00000001 mL10,000,000 aL

How to Convert Milliliters to Attoliters

To convert milliliters to attoliters, multiply the volume by the following conversion ratio: 1e+15 attoliters/milliliter.

Since one milliliter is equal to 1e+15 attoliters, you can use this simple formula to convert:

attoliters = milliliters × 1e+15

The volume in attoliters is equal to the volume in milliliters multiplied by 1e+15.

For example, here's how to convert 5 milliliters to attoliters using the formula above.

attoliters = (5 mL × 1e+15) = 5e+15 aL

How Many Attoliters Are in a Milliliter?

There are 1e+15 attoliters in a milliliter, which is why we use this value in the formula above.

1 mL = 1e+15 aL|1 aL = 1e-15 mL

Our milliliter to attoliter calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Milliliters and attoliters are both units used to measure volume. Keep reading to learn more about each unit.

What Is a Milliliter?

A milliliter is a unit of volume equal to 1/1,000 of a liter (0.001 L). One-thousandth of a liter, identical to 1 cubic centimeter (cc). [1]

The milliliter is classified as a metric and SI-compatible unit of volume. Milliliters can be abbreviated as mL; for example, 1 milliliter can be written as 1 mL.

In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the milliliter (mL) a convenient decimal multiple of the liter (L).

In practice, milliliters (mL) 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 milliliters (mL) and attoliters (aL), keep full floating-point precision (1 mL = 1e+15 aL; 1 aL = 1e-15 mL) during intermediate calculations and round only the final attoliter figure to match your instrument tolerance.

More Milliliter & Attoliter Conversions

Need to calculate in the opposite direction? Use our attoliters to milliliters calculator to switch your starting unit immediately. You can also explore related tools such as converting attoliters to milliliters, converting milliliters to fluid ounces (us), or converting milliliters to cups (us).

Frequently Asked Questions

There are 1.000000e+15 attoliters (aL) in 1 milliliter (mL). Conversely, 1 attoliter (aL) is equal to 1.000000e-15 milliliters (mL).

References

NIST · BIPM · ISO
  1. [1]
    NIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Milliliters (mL) to Attoliters (aL)
    NIST OWM Standard
  2. [2]
    NIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Milliliter (mL) & Attoliter (aL)
    NIST HB 44 Specification
  3. [3]
    NIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (mL to aL)
    NIST SP 811 Reference
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