A Millihenry (mH) equals 1/1,000 henry(s), a scaled unit of inductance used for milli-scale electrical work.
Millihenrys to Femtohenrys
Convert Millihenry (mH) to Femtohenry (fH) instantly with an exact formula, conversion table, and FAQ.
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Convert millihenrys (mH) to femtohenrys (fH) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Femtohenry (fH) equals 1e-15 henry(s), a scaled unit of inductance used for femto-scale electrical work.
fH = mH × 1.000000e+12
Results update instantly for Millihenrys to Femtohenrys conversions.
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Formula
fH = mH × 1.000000e+12
mH = fH × 1.000000e-12
Conversion table
| 1 mH | 1.000000e+12 fH |
| 5 mH | 5.000000e+12 fH |
| 10 mH | 1.000000e+13 fH |
| 20 mH | 2.000000e+13 fH |
| 50 mH | 5.000000e+13 fH |
| 100 mH | 1.000000e+14 fH |
| 500 mH | 5.000000e+14 fH |
| 1000 mH | 1.000000e+15 fH |
Related conversions
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How the formula works
Both millihenry and femtohenry measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in millihenrys by 1.000000e+12 to get femtohenrys. To reverse the conversion, multiply a femtohenry value by 1.000000e-12 to get back to millihenrys.
Frequently asked questions
What is Millihenry (mH)?
A Millihenry (mH) equals 1/1,000 henry(s), a scaled unit of inductance used for milli-scale electrical work.
What is Femtohenry (fH)?
A Femtohenry (fH) equals 1e-15 henry(s), a scaled unit of inductance used for femto-scale electrical work.
How do I convert millihenrys to femtohenrys?
Multiply the millihenry value by 1.000000e+12 to get the equivalent in femtohenrys. For example, 5 mH × 1.000000e+12 = 5.000000e+12 fH.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+12 is an exact, non-rounded value.
Can I convert femtohenrys back to millihenrys?
Yes. Divide the femtohenry value by 1.000000e+12, or multiply it by 1.000000e-12, to get millihenrys.
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About converting millihenrys to femtohenrys
A Millihenry (mH) equals 1/1,000 henry(s), a scaled unit of inductance used for milli-scale electrical work. A Femtohenry (fH) equals 1e-15 henry(s), a scaled unit of inductance used for femto-scale electrical work.
Use this calculator to move between millihenrys and femtohenrys accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.