Nanohenry is 1e-9 henry units.
Nanohenrys to Millihenrys Converter — nH to mH
Convert Nanohenry (nH) to Millihenry (mH) using the exact conversion factor (1 nanohenry = 0.000001 millihenry). See the formula, worked examples, and conversion table.
Nanohenrys to Millihenrys 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.
Millihenry is 0.001 henry units.
Result = input x 1e-9 / 0.001.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Nanohenrys to Millihenrys
Nanohenry and Millihenry 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: Nanohenry is 1e-9 henry units, and millihenry is 0.001 henry units.
Formula
millihenrys = nanohenrys × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 nanohenry equals 1e-9 base units, and 1 millihenry equals 0.001 base units, so dividing one by the other gives the direct nanohenry-to-millihenry factor of 0.000001.
Simple example
1 nH × 0.000001 = 0.000001 mH
1 nanohenry = 0.000001 millihenrys.
Real-world example
120 nH × 0.000001 = 0.00012 mH
120 nanohenrys = 0.00012 millihenrys.
Conversion table
| Nanohenry (nH) | Millihenry (mH) |
|---|---|
| 1 nH | 0.000001 mH |
| 5 nH | 0.000005 mH |
| 12 nH | 0.000012 mH |
| 24 nH | 0.000024 mH |
| 120 nH | 0.00012 mH |
| 240 nH | 0.00024 mH |
Reverse conversion: Millihenry to Nanohenry
0.000001 mH × 1000000 = 1 nH
0.000001 millihenrys = 1 nanohenry.
nanohenrys = millihenrys × 1000000
For a page dedicated to this direction, see Millihenry to Nanohenry.
Understanding the Nanohenry (nH)
Nanohenry is 1e-9 henry units.
Understanding the Millihenry (mH)
Millihenry is 0.001 henry units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many millihenrys are in 1 nanohenry?
1 nanohenry equals 0.000001 millihenrys, using the exact defined conversion factor rather than an estimate.
How do I convert nanohenry to millihenry?
Multiply the nanohenry value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert millihenry back to nanohenry?
Use the reverse factor: 1 millihenry equals 1,000,000 nanohenrys. You can also use the swap control in the converter above to flip the direction instantly.
What is a nanohenry?
Nanohenry (nH) is a unit of electricity.
What is a millihenry?
Millihenry (mH) is a unit of electricity.
Is the nanohenry to millihenry conversion exact?
Yes. Both nanohenry and millihenry are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 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.