attogram to femtogram
Convert attogram (ag) to femtogram (fg). Use an editable mass converter, conversion formula, and reference table.
1 ag = 0.001 fg
Conversion formula
One attogram equals 0.001 femtogram. Multiply your value in attogram by this factor to get femtogram. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 attogram:5 × 0.001 = 0.005 fg
Conversion table
| attogram (ag) | femtogram (fg) |
|---|---|
| 0.01 | 0.00001 |
| 0.1 | 0.0001 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 1000 | 1 |
About these measurements
Mass quantifies an amount of matter.
The base reference used here is the gram. One attogram is 1e-18 base units; one femtogram is 1e-15 base units.
Important distinctions
Mass is not force. Avoirdupois ounces and troy ounces have different masses.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert ag to fg?
Multiply the quantity in ag by 0.001. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the femtogram to attogram converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
