A Femtoampere (fA) equals 1e-15 ampere(s), a scaled unit of electric current used for femto-scale electrical work.
Femtoamperes to Amperes
Convert Femtoampere (fA) to Ampere (A) instantly with an exact formula, conversion table, and FAQ.
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Convert femtoamperes (fA) to amperes (A) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
The ampere (A) is the SI unit of electric current, measuring the rate of flow of electric charge.
A = fA × 1.000000e-15
Results update instantly for Femtoamperes to Amperes conversions.
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Formula
A = fA × 1.000000e-15
fA = A × 1.000000e+15
Conversion table
| 1 fA | 1.000000e-15 A |
| 5 fA | 5.000000e-15 A |
| 10 fA | 1.000000e-14 A |
| 20 fA | 2.000000e-14 A |
| 50 fA | 5.000000e-14 A |
| 100 fA | 1.000000e-13 A |
| 500 fA | 5.000000e-13 A |
| 1000 fA | 1.000000e-12 A |
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How the formula works
Both femtoampere and ampere measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in femtoamperes by 1.000000e-15 to get amperes. To reverse the conversion, multiply a ampere value by 1.000000e+15 to get back to femtoamperes.
Frequently asked questions
What is Femtoampere (fA)?
A Femtoampere (fA) equals 1e-15 ampere(s), a scaled unit of electric current used for femto-scale electrical work.
What is Ampere (A)?
The ampere (A) is the SI unit of electric current, measuring the rate of flow of electric charge.
How do I convert femtoamperes to amperes?
Multiply the femtoampere value by 1.000000e-15 to get the equivalent in amperes. For example, 5 fA × 1.000000e-15 = 5.000000e-15 A.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e-15 is an exact, non-rounded value.
Can I convert amperes back to femtoamperes?
Yes. Divide the ampere value by 1.000000e-15, or multiply it by 1.000000e+15, to get femtoamperes.
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About converting femtoamperes to amperes
A Femtoampere (fA) equals 1e-15 ampere(s), a scaled unit of electric current used for femto-scale electrical work. The ampere (A) is the SI unit of electric current, measuring the rate of flow of electric charge.
Use this calculator to move between femtoamperes and amperes accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.