Convert Picogram to Gram
Convert picograms to grams instantly. 1 picogram = 1e-12 gram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Gram to Picogram converter for the reverse conversion.
Units explained
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.
Gram
The gram (g) equals one-thousandth of a kilogram.
From Late Latin 'gramma', a small weight or scruple.
The everyday metric unit for food, medicine, and small objects.
Defined in 1795 as the mass of one cubic centimeter of water at melting point.
Picogram to Gram conversion formula
The relationship between picograms and grams:
To convert picograms to grams, multiply the value in picograms by 1e-12. To reverse, multiply grams by 1e+12.
How to use this converter
Type a value into the calculator. The result in grams updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Gram to Picogram converter for the reverse direction.
Step-by-step: convert picograms to grams
- Write down the value in picograms (pg).
- Multiply that value by the factor 1e-12.
- The product is the equivalent value in grams (g).
- To reverse, multiply the gram value by 1e+12.
Worked examples
Example 1 — Convert 1 pg to g:
1 × 1e-12 = 1e-12 g
Example 2 — Convert 100 pg to g:
100 × 1e-12 = 1e-10 g
Real-world example — Sub-micron to millimeter
500,000 picograms converts to a small everyday quantity in grams — useful when relating optical-wavelength specifications to physical mounting hardware.
500000 pg × 1e-12 = 5e-7 g
Real-world example — From wavelengths to millimeter-scale objects
A value of one million picograms sounds vast at the atomic scale but converts to a small everyday quantity in grams — useful when relating optical-wavelength specifications to physical mounting hardware.
1000000 pg × 1e-12 = 1e-6 g
Picogram to Gram conversion table
Standard reference values for converting picograms to grams:
| Picogram [pg] | Gram [g] |
|---|---|
| 0.01 | 1e-14 |
| 0.1 | 1e-13 |
| 1 | 1e-12 |
| 2 | 2e-12 |
| 3 | 3e-12 |
| 4 | 4e-12 |
| 5 | 5e-12 |
| 10 | 1e-11 |
| 20 | 2e-11 |
| 30 | 3e-11 |
| 40 | 4e-11 |
| 50 | 5e-11 |
| 100 | 1e-10 |
| 500 | 5e-10 |
| 1000 | 1e-9 |
Frequently asked questions
How many grams is 1 picogram?
How do I convert picograms to grams?
How do I convert grams back to picograms?
How many grams is 100 picograms?
Popular weight unit conversions
Convert Picogram to other weight units
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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 pg = 1e-12 g) 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.