An Attoampere (aA) equals 1e-18 ampere(s), a scaled unit of electric current used for atto-scale electrical work.
Attoamperes to Femtoamperes
Convert Attoampere (aA) to Femtoampere (fA) instantly with an exact formula, conversion table, and FAQ.
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Convert attoamperes (aA) to femtoamperes (fA) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Femtoampere (fA) equals 1e-15 ampere(s), a scaled unit of electric current used for femto-scale electrical work.
fA = aA × 0.001
Results update instantly for Attoamperes to Femtoamperes conversions.
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Formula
fA = aA × 0.001
aA = fA × 1000
Conversion table
| 1 aA | 0.001 fA |
| 5 aA | 0.005 fA |
| 10 aA | 0.01 fA |
| 20 aA | 0.02 fA |
| 50 aA | 0.05 fA |
| 100 aA | 0.1 fA |
| 500 aA | 0.5 fA |
| 1000 aA | 1 fA |
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How the formula works
Both attoampere and femtoampere measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in attoamperes by 0.001 to get femtoamperes. To reverse the conversion, multiply a femtoampere value by 1000 to get back to attoamperes.
Frequently asked questions
What is Attoampere (aA)?
An Attoampere (aA) equals 1e-18 ampere(s), a scaled unit of electric current used for atto-scale electrical work.
What is Femtoampere (fA)?
A Femtoampere (fA) equals 1e-15 ampere(s), a scaled unit of electric current used for femto-scale electrical work.
How do I convert attoamperes to femtoamperes?
Multiply the attoampere value by 0.001 to get the equivalent in femtoamperes. For example, 5 aA × 0.001 = 0.005 fA.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 0.001 is an exact, non-rounded value.
Can I convert femtoamperes back to attoamperes?
Yes. Divide the femtoampere value by 0.001, or multiply it by 1000, to get attoamperes.
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About converting attoamperes to femtoamperes
An Attoampere (aA) equals 1e-18 ampere(s), a scaled unit of electric current used for atto-scale electrical work. A Femtoampere (fA) equals 1e-15 ampere(s), a scaled unit of electric current used for femto-scale electrical work.
Use this calculator to move between attoamperes and femtoamperes accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.