A Femtocoulomb (fC) equals 1e-15 coulomb(s), a scaled unit of electric charge used for femto-scale electrical work.
Femtocoulombs to Coulombs
Convert Femtocoulomb (fC) to Coulomb (C) instantly with an exact formula, conversion table, and FAQ.
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Convert femtocoulombs (fC) to coulombs (C) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
The coulomb (C) is the SI unit of electric charge, equal to the charge carried by a steady current of one ampere flowing for one second.
C = fC × 1.000000e-15
Results update instantly for Femtocoulombs to Coulombs conversions.
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Formula
C = fC × 1.000000e-15
fC = C × 1.000000e+15
Conversion table
| 1 fC | 1.000000e-15 C |
| 5 fC | 5.000000e-15 C |
| 10 fC | 1.000000e-14 C |
| 20 fC | 2.000000e-14 C |
| 50 fC | 5.000000e-14 C |
| 100 fC | 1.000000e-13 C |
| 500 fC | 5.000000e-13 C |
| 1000 fC | 1.000000e-12 C |
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How the formula works
Both femtocoulomb and coulomb measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in femtocoulombs by 1.000000e-15 to get coulombs. To reverse the conversion, multiply a coulomb value by 1.000000e+15 to get back to femtocoulombs.
Frequently asked questions
What is Femtocoulomb (fC)?
A Femtocoulomb (fC) equals 1e-15 coulomb(s), a scaled unit of electric charge used for femto-scale electrical work.
What is Coulomb (C)?
The coulomb (C) is the SI unit of electric charge, equal to the charge carried by a steady current of one ampere flowing for one second.
How do I convert femtocoulombs to coulombs?
Multiply the femtocoulomb value by 1.000000e-15 to get the equivalent in coulombs. For example, 5 fC × 1.000000e-15 = 5.000000e-15 C.
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 coulombs back to femtocoulombs?
Yes. Divide the coulomb value by 1.000000e-15, or multiply it by 1.000000e+15, to get femtocoulombs.
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About converting femtocoulombs to coulombs
A Femtocoulomb (fC) equals 1e-15 coulomb(s), a scaled unit of electric charge used for femto-scale electrical work. The coulomb (C) is the SI unit of electric charge, equal to the charge carried by a steady current of one ampere flowing for one second.
Use this calculator to move between femtocoulombs and coulombs accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.