Nanograms to Attograms Converter
Enter the weight in nanograms below to convert it to attograms.
Convert Nanograms to Attograms
Enter a value in nanograms (ng) to convert to attograms (ag).
Nanogram to Attogram Conversion Table
Table showing various nanogram measurements converted to attograms. Click any preset value or arrow to load it into the converter.
How to Convert Nanograms to Attograms
To convert nanograms to attograms, multiply the weight by the following conversion ratio: 1,000,000,000.0000001 attograms/nanogram.
Since one nanogram is equal to 1,000,000,000.0000001 attograms, you can use this simple formula to convert:
The weight in attograms is equal to the weight in nanograms multiplied by 1,000,000,000.0000001.
For example, here's how to convert 5 nanograms to attograms using the formula above.
How Many Attograms Are in a Nanogram?
There are 1,000,000,000.0000001 attograms in a nanogram, which is why we use this value in the formula above.
Our nanogram to attogram calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Nanograms and attograms are both units used to measure weight. Keep reading to learn more about each unit.
What Is a Nanogram?
A nanogram is a unit of weight equal to 1/1,000,000,000,000 of a kilogram (1e-12 kg). One-billionth of a gram (10⁻¹² kg). [1]
The nanogram is classified as a metric and SI-compatible unit of weight. Nanograms can be abbreviated as ng; for example, 1 nanogram can be written as 1 ng.
In the metric system, "nano" is the standard SI prefix for billionths, or 10⁻⁹. This makes the nanogram (ng) a convenient decimal multiple of the gram (g).
In practice, nanograms (ng) are widely used across fine-tolerance laboratory, analytical, and micro-scale weight measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is an Attogram?
An attogram is a unit of weight equal to 1/1,000,000,000,000,000,100,000 of a kilogram (1e-21 kg). 10⁻²¹ kilograms. [2]
The attogram is classified as a metric and SI-compatible unit of weight. Attograms can be abbreviated as ag; for example, 1 attogram can be written as 1 ag.
When working with attograms (ag) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, attograms (ag) are widely used across fine-tolerance laboratory, analytical, and micro-scale weight measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting weight between nanograms (ng) and attograms (ag), keep full floating-point precision (1 ng = 1,000,000,000.0000001 ag; 1 ag = 1e-9 ng) during intermediate calculations and round only the final attogram figure to match your instrument tolerance.
More Nanogram & Attogram Conversions
Need to calculate in the opposite direction? Use our attograms to nanograms calculator to switch your starting unit immediately. You can also explore related tools such as converting attograms to nanograms, converting kilograms to pounds, or converting pounds to kilograms.
Convert from Nanograms
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Nanograms (ng) to Attograms (ag)
- [2]NIST HB 44 SpecificationNIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Nanogram (ng) & Attogram (ag)
- [3]BIPM ReferenceBIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (ng to ag)