Millihenries to Henries Converter
Enter the inductance in millihenries below to convert it to henries.
Convert Millihenries to Henries
Enter a value in millihenries (mH) to convert to henries (H).
Millihenry to Henry Conversion Table
Table showing various millihenry measurements converted to henries. Click any preset value or arrow to load it into the converter.
How to Convert Millihenries to Henries
To convert millihenries to henries, multiply the inductance by the following conversion ratio: 0.001 henries/millihenry.
Since one millihenry is equal to 0.001 henries, you can use this simple formula to convert:
The inductance in henries is equal to the inductance in millihenries multiplied by 0.001.
For example, here's how to convert 100 millihenries to henries using the formula above.
How Many Henries Are in a Millihenry?
There are 0.001 henries in a millihenry, which is why we use this value in the formula above.
Our millihenry to henry calculator automatically converts your inductance measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Millihenries and henries are both units used to measure inductance. Keep reading to learn more about each unit.
What Is a Millihenry?
A millihenry is a unit of inductance equal to 1/1,000 of a henry (0.001 H). One-thousandth of a Henry (0.001 H). [1]
The millihenry is classified as a metric and SI-compatible unit of inductance. Millihenries can be abbreviated as mH; for example, 1 millihenry can be written as 1 mH.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millihenry (mH) a convenient decimal multiple of the henry (H).
In practice, millihenries (mH) are widely used across fine-tolerance laboratory, analytical, and micro-scale inductance measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Henry?
SI unit of electrical inductance. It serves as a primary reference unit for measuring inductance across scientific and practical applications. [2]
The henry is classified as an International System of Units (SI) unit of inductance. Henries can be abbreviated as H; for example, 1 henry can be written as 1 H.
As the primary coherent reference unit for inductance in this category, all other inductance units are mathematically anchored to the henry (H).
In practice, henries (H) are widely used across standard inductance applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting inductance between millihenries (mH) and henries (H), keep full floating-point precision (1 mH = 0.001 H; 1 H = 1,000 mH) during intermediate calculations and round only the final henry figure to match your instrument tolerance.
More Millihenry & Henry Conversions
Need to calculate in the opposite direction? Use our henries to millihenries converter (H to mH) to switch your starting unit immediately. You can also explore related tools such as converting microhenries to henries, or converting microhenries to millihenries.
Convert from Millihenries
Convert to Henries
Frequently Asked Questions
References
- [1]NIST CUU StandardNIST CUU (Derived SI Unit: Henry (H))·Inductance Metrology Standard — Millihenries (mH) to Henries (H)
- [2]BIPM SpecificationBIPM (SI Brochure (9th Ed.) — Inductance)·Unit Specifications: Millihenry (mH) & Henry (H)
- [3]BIPM Prefixes ReferenceBIPM Prefixes (SI Submultiples (mH, µH, nH))·Conversion Factors & Mathematical Basis (mH to H)