Femtogram is 1e-15 gram units.
Femtograms to Nanograms Converter — fg to ng
Convert Femtogram (fg) to Nanogram (ng) using the exact conversion factor (1 femtogram = 0.000001 nanogram). See the formula, worked examples, and conversion table.
Femtograms to Nanograms 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.
Nanogram is 1e-9 gram units.
Result = input x 1e-18 / 1e-12.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Femtograms to Nanograms
Weight conversions between Femtogram and Nanogram 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: Femtogram is 1e-15 gram units, and nanogram is 1e-9 gram units.
Formula
nanograms = femtograms × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 femtogram equals 1e-18 base units, and 1 nanogram equals 1e-12 base units, so dividing one by the other gives the direct femtogram-to-nanogram factor of 0.000001.
Simple example
1 fg × 0.000001 = 0.000001 ng
1 femtogram = 0.000001 nanograms.
Real-world example
50 fg × 0.000001 = 0.00005 ng
50 femtograms = 0.00005 nanograms.
Conversion table
| Femtogram (fg) | Nanogram (ng) |
|---|---|
| 1 fg | 0.000001 ng |
| 5 fg | 0.000005 ng |
| 10 fg | 0.00001 ng |
| 25 fg | 0.000025 ng |
| 50 fg | 0.00005 ng |
| 100 fg | 0.0001 ng |
Reverse conversion: Nanogram to Femtogram
0.000001 ng × 1000000 = 1 fg
0.000001 nanograms = 1 femtogram.
femtograms = nanograms × 1000000
For a page dedicated to this direction, see Nanogram to Femtogram.
Understanding the Femtogram (fg)
Femtogram is 1e-15 gram units.
Understanding the Nanogram (ng)
Nanogram is 1e-9 gram units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanograms are in 1 femtogram?
1 femtogram equals 0.000001 nanograms, using the exact defined conversion factor rather than an estimate.
How do I convert femtogram to nanogram?
Multiply the femtogram value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert nanogram back to femtogram?
Use the reverse factor: 1 nanogram equals 1,000,000 femtograms. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtogram?
Femtogram (fg) is a unit of mass/weight.
What is a nanogram?
Nanogram (ng) is a unit of mass/weight.
Is the femtogram to nanogram conversion exact?
Yes. Both femtogram and nanogram are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 used above is exact to as many digits as you choose to display.