Convert Attogram to Picogram
Convert attograms to picograms instantly. 1 attogram = 1e-6 picogram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Picogram to Attogram converter for the reverse conversion.
Units explained
Attogram
An attogram (ag) equals 10^-21 kilogram.
From the SI prefix 'atto-' (from Danish 'atten', eighteen).
Frontier nanoscience and single-molecule mass detection.
The atto- prefix was adopted by the CGPM in 1975.
Picogram
A picogram (pg) equals 10^-15 kilogram.
From the SI prefix 'pico-' (from Spanish 'pico', a small quantity).
Single-cell biology and ultratrace chemical analysis.
The pico- prefix entered the SI in 1960.
Attogram to Picogram conversion formula
The relationship between attograms and picograms:
To convert attograms to picograms, multiply the value in attograms by 1e-6. To reverse, multiply picograms by 1000000.0000000002.
How to use this converter
Type a value into the calculator. The result in picograms updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Picogram to Attogram converter for the reverse direction.
Step-by-step: convert attograms to picograms
- Write down the value in attograms (ag).
- Multiply that value by the factor 1e-6.
- The product is the equivalent value in picograms (pg).
- To reverse, multiply the picogram value by 1000000.0000000002.
Worked examples
Example 1 — Convert 1 ag to pg:
1 × 1e-6 = 1e-6 pg
Example 2 — Convert 100 ag to pg:
100 × 1e-6 = 1e-4 pg
Real-world example — Molecular dimensions
The diameter of small molecular structures (around 2 attograms) is often converted into related sub-micron units when comparing measurements across different microscopy techniques or imaging modalities.
2 ag × 1e-6 = 2e-6 pg
Real-world example — Wavelengths across the spectrum
Optical and atomic-scale phenomena are routinely cross-converted between sub-micron units. A photon of wavelength 800 attograms can be re-expressed in picograms for direct comparison with another instrument's calibration data sheet.
800 ag × 1e-6 = 0.0008 pg
Attogram to Picogram conversion table
Standard reference values for converting attograms to picograms:
| Attogram [ag] | Picogram [pg] |
|---|---|
| 0.01 | 1e-8 |
| 0.1 | 1e-7 |
| 1 | 1e-6 |
| 2 | 2e-6 |
| 3 | 3e-6 |
| 4 | 4e-6 |
| 5 | 5e-6 |
| 10 | 1e-5 |
| 20 | 2e-5 |
| 30 | 3e-5 |
| 40 | 4e-5 |
| 50 | 5e-5 |
| 100 | 1e-4 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Frequently asked questions
How many picograms is 1 attogram?
How do I convert attograms to picograms?
How do I convert picograms back to attograms?
How many picograms is 100 attograms?
Popular weight unit conversions
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Metric / SI (17 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 ag = 1e-6 pg) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.