Picograms to Attograms Converter
Enter the weight in picograms below to convert it to attograms.
Convert Picograms to Attograms
Enter a value in picograms (pg) to convert to attograms (ag).
Picogram to Attogram Conversion Table
Table showing various picogram measurements converted to attograms. Click any preset value or arrow to load it into the converter.
How to Convert Picograms to Attograms
To convert picograms to attograms, multiply the weight by the following conversion ratio: 1,000,000 attograms/picogram.
Since one picogram is equal to 1,000,000 attograms, you can use this simple formula to convert:
The weight in attograms is equal to the weight in picograms multiplied by 1,000,000.
For example, here's how to convert 5 picograms to attograms using the formula above.
How Many Attograms Are in a Picogram?
There are 1,000,000 attograms in a picogram, which is why we use this value in the formula above.
Our picogram to attogram calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Picograms and attograms are both units used to measure weight. Keep reading to learn more about each unit.
What Is a Picogram?
A picogram is a unit of weight equal to 1e-15 kilograms (kg), the base unit for weight. One-trillionth of a gram (10⁻¹⁵ kg). [1]
The picogram is classified as a metric and SI-compatible unit of weight. Picograms can be abbreviated as pg; for example, 1 picogram can be written as 1 pg.
In the metric system, "pico" is the standard SI prefix for trillionths, or 10⁻¹². This makes the picogram (pg) a convenient decimal multiple of the gram (g).
In practice, picograms (pg) 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 picograms (pg) and attograms (ag), keep full floating-point precision (1 pg = 1,000,000 ag; 1 ag = 0.000001 pg) during intermediate calculations and round only the final attogram figure to match your instrument tolerance.
More Picogram & Attogram Conversions
Need to calculate in the opposite direction? Use our attograms to picograms calculator to switch your starting unit immediately. You can also explore related tools such as converting attograms to picograms, converting kilograms to pounds, or converting pounds to kilograms.
Convert from Picograms
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Picograms (pg) to Attograms (ag)
- [2]NIST HB 44 SpecificationNIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Picogram (pg) & Attogram (ag)
- [3]BIPM ReferenceBIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (pg to ag)