Microhenry is 0.000001 henry units.
Microhenrys to Femtohenrys Converter — uH to fH
Convert Microhenry (uH) to Femtohenry (fH) using the exact conversion factor (1 microhenry = 1,000,000,000 femtohenry). See the formula, worked examples, and conversion table.
Microhenrys to Femtohenrys converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Femtohenry is 1e-15 henry units.
Result = input x 1e-6 / 1e-15.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Microhenrys to Femtohenrys
Microhenry and Femtohenry both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Microhenry is 0.000001 henry units, and femtohenry is 1e-15 henry units.
Formula
femtohenrys = microhenrys × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 microhenry equals 0.000001 base units, and 1 femtohenry equals 1e-15 base units, so dividing one by the other gives the direct microhenry-to-femtohenry factor of 1000000000.
Simple example
1 uH × 1000000000 = 1,000,000,000 fH
1 microhenry = 1,000,000,000 femtohenrys.
Real-world example
120 uH × 1000000000 = 120,000,000,000 fH
120 microhenrys = 120,000,000,000 femtohenrys.
Conversion table
| Microhenry (uH) | Femtohenry (fH) |
|---|---|
| 1 uH | 1,000,000,000 fH |
| 5 uH | 5,000,000,000 fH |
| 12 uH | 12,000,000,000 fH |
| 24 uH | 24,000,000,000 fH |
| 120 uH | 120,000,000,000 fH |
| 240 uH | 240,000,000,000 fH |
Reverse conversion: Femtohenry to Microhenry
1 fH × 1e-9 = 1e-9 uH
1 femtohenry = 1e-9 microhenrys.
microhenrys = femtohenrys × 1e-9
For a page dedicated to this direction, see Femtohenry to Microhenry.
Understanding the Microhenry (uH)
Microhenry is 0.000001 henry units.
Understanding the Femtohenry (fH)
Femtohenry is 1e-15 henry units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtohenrys are in 1 microhenry?
1 microhenry equals 1,000,000,000 femtohenrys, using the exact defined conversion factor rather than an estimate.
How do I convert microhenry to femtohenry?
Multiply the microhenry value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert femtohenry back to microhenry?
Use the reverse factor: 1 femtohenry equals 1e-9 microhenrys. You can also use the swap control in the converter above to flip the direction instantly.
What is a microhenry?
Microhenry (uH) is a unit of electricity.
What is a femtohenry?
Femtohenry (fH) is a unit of electricity.
Is the microhenry to femtohenry conversion exact?
Yes. Both microhenry and femtohenry are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.