Millihenry is 0.001 henry units.
Millihenrys to Picohenrys Converter — mH to pH
Convert Millihenry (mH) to Picohenry (pH) using the exact conversion factor (1 millihenry = 1,000,000,000 picohenry). See the formula, worked examples, and conversion table.
Millihenrys to Picohenrys 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.
Picohenry is 1e-12 henry units.
Result = input x 0.001 / 1e-12.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Millihenrys to Picohenrys
Millihenry and Picohenry 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: Millihenry is 0.001 henry units, and picohenry is 1e-12 henry units.
Formula
picohenrys = millihenrys × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 millihenry equals 0.001 base units, and 1 picohenry equals 1e-12 base units, so dividing one by the other gives the direct millihenry-to-picohenry factor of 1000000000.
Simple example
1 mH × 1000000000 = 1,000,000,000 pH
1 millihenry = 1,000,000,000 picohenrys.
Real-world example
120 mH × 1000000000 = 120,000,000,000 pH
120 millihenrys = 120,000,000,000 picohenrys.
Conversion table
| Millihenry (mH) | Picohenry (pH) |
|---|---|
| 1 mH | 1,000,000,000 pH |
| 5 mH | 5,000,000,000 pH |
| 12 mH | 12,000,000,000 pH |
| 24 mH | 24,000,000,000 pH |
| 120 mH | 120,000,000,000 pH |
| 240 mH | 240,000,000,000 pH |
Reverse conversion: Picohenry to Millihenry
1 pH × 1e-9 = 1e-9 mH
1 picohenry = 1e-9 millihenrys.
millihenrys = picohenrys × 1e-9
For a page dedicated to this direction, see Picohenry to Millihenry.
Understanding the Millihenry (mH)
Millihenry is 0.001 henry units.
Understanding the Picohenry (pH)
Picohenry is 1e-12 henry units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picohenrys are in 1 millihenry?
1 millihenry equals 1,000,000,000 picohenrys, using the exact defined conversion factor rather than an estimate.
How do I convert millihenry to picohenry?
Multiply the millihenry value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert picohenry back to millihenry?
Use the reverse factor: 1 picohenry equals 1e-9 millihenrys. You can also use the swap control in the converter above to flip the direction instantly.
What is a millihenry?
Millihenry (mH) is a unit of electricity.
What is a picohenry?
Picohenry (pH) is a unit of electricity.
Is the millihenry to picohenry conversion exact?
Yes. Both millihenry and picohenry 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.