Millihenry is 0.001 henry units.
Millihenrys to Decihenrys Converter — mH to dH
Convert Millihenry (mH) to Decihenry (dH) using the exact conversion factor (1 millihenry = 0.01 decihenry). See the formula, worked examples, and conversion table.
Millihenrys to Decihenrys 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.
Decihenry is 0.1 henry units.
Result = input x 0.001 / 0.1.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Millihenrys to Decihenrys
Millihenry and Decihenry 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 decihenry is 0.1 henry units.
Formula
decihenrys = millihenrys × 0.01
This factor comes from each unit's defined relationship to the category's base unit: 1 millihenry equals 0.001 base units, and 1 decihenry equals 0.1 base units, so dividing one by the other gives the direct millihenry-to-decihenry factor of 0.01.
Simple example
1 mH × 0.01 = 0.01 dH
1 millihenry = 0.01 decihenrys.
Real-world example
120 mH × 0.01 = 1.2 dH
120 millihenrys = 1.2 decihenrys.
Conversion table
| Millihenry (mH) | Decihenry (dH) |
|---|---|
| 1 mH | 0.01 dH |
| 5 mH | 0.05 dH |
| 12 mH | 0.12 dH |
| 24 mH | 0.24 dH |
| 120 mH | 1.2 dH |
| 240 mH | 2.4 dH |
Reverse conversion: Decihenry to Millihenry
0.01 dH × 100 = 1 mH
0.01 decihenrys = 1 millihenry.
millihenrys = decihenrys × 100
For a page dedicated to this direction, see Decihenry to Millihenry.
Understanding the Millihenry (mH)
Millihenry is 0.001 henry units.
Understanding the Decihenry (dH)
Decihenry is 0.1 henry units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decihenrys are in 1 millihenry?
1 millihenry equals 0.01 decihenrys, using the exact defined conversion factor rather than an estimate.
How do I convert millihenry to decihenry?
Multiply the millihenry value by 0.01. The converter above does this instantly to whatever precision you set.
How do I convert decihenry back to millihenry?
Use the reverse factor: 1 decihenry equals 100 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 decihenry?
Decihenry (dH) is a unit of electricity.
Is the millihenry to decihenry conversion exact?
Yes. Both millihenry and decihenry are defined by fixed standards rather than physical artifacts, so the factor of 0.01 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.