Picogram is 1e-12 gram units.
Picograms to Zeptograms Converter — pg to zg
Convert Picogram (pg) to Zeptogram (zg) using the exact conversion factor (1 picogram = 1,000,000,000 zeptogram). See the formula, worked examples, and conversion table.
Picograms to Zeptograms converter
Converter
Mass/Weight Converter
Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.
Context values
Some unit families need one extra value for a physically accurate result.
Zeptogram is 1e-21 gram units.
Result = input x 1e-15 / 1e-24.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Picograms to Zeptograms
Weight conversions between Picogram and Zeptogram come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Specifically: Picogram is 1e-12 gram units, and zeptogram is 1e-21 gram units.
Formula
zeptograms = picograms × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 picogram equals 1e-15 base units, and 1 zeptogram equals 1e-24 base units, so dividing one by the other gives the direct picogram-to-zeptogram factor of 1000000000.
Simple example
1 pg × 1000000000 = 1,000,000,000 zg
1 picogram = 1,000,000,000 zeptograms.
Real-world example
50 pg × 1000000000 = 50,000,000,000 zg
50 picograms = 50,000,000,000 zeptograms.
Conversion table
| Picogram (pg) | Zeptogram (zg) |
|---|---|
| 1 pg | 1,000,000,000 zg |
| 5 pg | 5,000,000,000 zg |
| 10 pg | 10,000,000,000 zg |
| 25 pg | 25,000,000,000 zg |
| 50 pg | 50,000,000,000 zg |
| 100 pg | 100,000,000,000 zg |
Reverse conversion: Zeptogram to Picogram
1 zg × 1e-9 = 1e-9 pg
1 zeptogram = 1e-9 picograms.
picograms = zeptograms × 1e-9
For a page dedicated to this direction, see Zeptogram to Picogram.
Understanding the Picogram (pg)
Picogram is 1e-12 gram units.
Understanding the Zeptogram (zg)
Zeptogram is 1e-21 gram units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many zeptograms are in 1 picogram?
1 picogram equals 1,000,000,000 zeptograms, using the exact defined conversion factor rather than an estimate.
How do I convert picogram to zeptogram?
Multiply the picogram value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert zeptogram back to picogram?
Use the reverse factor: 1 zeptogram equals 1e-9 picograms. You can also use the swap control in the converter above to flip the direction instantly.
What is a picogram?
Picogram (pg) is a unit of mass/weight.
What is a zeptogram?
Zeptogram (zg) is a unit of mass/weight.
Is the picogram to zeptogram conversion exact?
Yes. Both picogram and zeptogram are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 used above is exact to as many digits as you choose to display.