Inductance Converter
Convert between different inductance units including Henry, Exahenry, Petahenry, Terahenry, Gigahenry, Megahenry, Kilohenry, Hectohenry, Dekahenry, Decihenry, Centihenry, Millihenry, Microhenry, Nanohenry, Picohenry, Femtohenry, Attohenry, Weber/ampere, Abhenry, EMU of inductance, Stathenry, ESU of inductance, and more.
Result
1 Henry = 1000 Millihenry
Complete Guide to Inductance Conversion
Inductance conversion is essential across electrical engineering, circuit design, electronics, physics research, and inductor selection. Whether you're calculating inductance in Henrys, analyzing very large inductances in Exahenrys and Petahenrys, measuring standard inductances in Kilohenrys and Megahenrys, working with common values in Millihenrys and Microhenrys, analyzing small inductances in Nanohenrys and Picohenrys, measuring very small inductances in Femtohenrys and Attohenrys, using flux-to-current ratios in Weber/ampere, working with CGS electromagnetic units in Abhenrys and EMU of inductance, converting CGS electrostatic units in Stathenrys and ESU of inductance, or converting between different inductance units, our free online inductance converter makes it easy to convert between Henry, Exahenry, Petahenry, Terahenry, Gigahenry, Megahenry, Kilohenry, Hectohenry, Dekahenry, Decihenry, Centihenry, Millihenry, Microhenry, Nanohenry, Picohenry, Femtohenry, Attohenry, Weber/ampere, Abhenry, EMU of inductance, Stathenry, ESU of inductance, and other inductance units instantly. Understanding inductance units and conversions is crucial for accurate measurements in electrical engineering, circuit design, electronics, and physics research.
Understanding Inductance Measurement Units
Inductance (L) represents the ability of an inductor to store energy in a magnetic field when electric current flows through it. Different industries and applications use various inductance units, each suited to specific measurement scales and contexts. From tiny femtohenry measurements in integrated circuits to massive henry values in power systems, understanding these units helps bridge different engineering disciplines and applications.
SI Units (Metric System)
Henry (H) - The Base Unit
The Henry is the SI base unit for inductance, representing the inductance when one Ampere of current produces one Weber of magnetic flux. One Henry equals one Weber per Ampere (1 H = 1 Wb/A). This unit is fundamental in electromagnetics, electrical engineering, and circuit analysis.
Henry Multiples
- Exahenry (EH): 10¹⁸ H - Extremely large inductances (theoretical)
- Petahenry (PH): 10¹⁵ H - Very large inductances (theoretical)
- Terahenry (TH): 10¹² H - Very large inductances (theoretical)
- Gigahenry (GH): 10⁹ H - Large inductances (theoretical)
- Megahenry (MH): 10⁶ H - Large inductances (power systems)
- Kilohenry (kH): 10³ H - Large inductances (power systems)
- Hectohenry (hH): 10² H - Large inductances
- Dekahenry (daH): 10¹ H - Large inductances
Henry Submultiples
- Decihenry (dH): 10⁻¹ H - Small inductances
- Centihenry (cH): 10⁻² H - Small inductances
- Millihenry (mH): 10⁻³ H - Common in electronics
- Microhenry (µH): 10⁻⁶ H - Very common in electronics
- Nanohenry (nH): 10⁻⁹ H - Common in integrated circuits
- Picohenry (pH): 10⁻¹² H - Very small inductances, common in ICs
- Femtohenry (fH): 10⁻¹⁵ H - Very small inductances, ICs
- Attohenry (aH): 10⁻¹⁸ H - Extremely small inductances, quantum devices
Alternative SI Units
Weber per Ampere (Wb/A)
Weber per Ampere is an alternative SI unit for inductance, equivalent to Henry (1 Wb/A = 1 H). This relationship comes from the definition: L = Φ / I, where L is inductance, Φ is magnetic flux in Webers, and I is current in Amperes. Therefore, 1 H = 1 Wb/A. This unit directly expresses the relationship between magnetic flux and current.
CGS Units (Centimeter-Gram-Second System)
Abhenry (abH)
Abhenry is a CGS electromagnetic unit where 1 abhenry = 10⁻⁹ henrys. This unit is used in the CGS electromagnetic unit system for very small inductance values in theoretical physics.
EMU of Inductance
EMU (Electromagnetic Unit) of inductance is identical to the Abhenry. One EMU of inductance equals 10⁻⁹ henrys (1 EMU = 10⁻⁹ H = 1 abH). The EMU system is based on the centimeter-gram-second electromagnetic units.
Stathenry (stH)
Stathenry is a CGS electrostatic unit where 1 stathenry ≈ 8.988 × 10¹¹ henrys. This unit is used in the CGS electrostatic unit system for very large inductance values in theoretical physics.
ESU of Inductance
ESU (Electrostatic Unit) of inductance is identical to the Stathenry. One ESU of inductance equals approximately 8.988 × 10¹¹ henrys (1 ESU ≈ 8.988 × 10¹¹ H = 1 stH). The ESU system is based on the centimeter-gram-second electrostatic units.
How to Convert Henry to Millihenry
Converting Henry to Millihenry is one of the most common inductance conversions, especially in circuit design and electronics applications. To convert from Henry to Millihenry, multiply the H value by 1,000. This conversion factor comes from the definition: 1 millihenry = 0.001 henry, so 1 henry = 1,000 millihenrys. For example, 0.001 H × 1,000 = 1 mH. This conversion is essential for understanding inductance values in circuit analysis, where millihenrys are often more convenient than henrys for typical component values.
Inductance vs Magnetic Flux vs Current: Understanding the Relationship
One of the most important concepts in inductance conversion is understanding the relationship between inductance, magnetic flux, and current:
- Inductance (L): The ability to store energy in a magnetic field per unit current, measured in Henrys. Higher inductance means more energy can be stored for a given current change.
- Magnetic Flux (Φ): The amount of magnetic field passing through a surface, measured in Webers.
- Current (I): The electric current flowing through the inductor, measured in Amperes.
The relationship is: Inductance = Magnetic Flux / Current, or L = Φ / I. For example, an inductor with 1 Wb of flux at 1 A = 1 H inductance. Since 1 H = 1 Wb/A, converting between inductance and flux-to-current ratios is straightforward. Understanding this distinction is crucial for circuit analysis, electrical engineering, and inductor selection.
Inductance Conversion Formulas
Our inductance converter uses these precise formulas for accurate conversions:
Henry to Millihenry:
mH = H × 1,000
Millihenry to Henry:
H = mH ÷ 1,000
Henry to Microhenry:
µH = H × 1,000,000
Microhenry to Henry:
H = µH ÷ 1,000,000
Henry to Nanohenry:
nH = H × 1,000,000,000
Nanohenry to Henry:
H = nH ÷ 1,000,000,000
Henry to Picohenry:
pH = H × 1,000,000,000,000
Picohenry to Henry:
H = pH ÷ 1,000,000,000,000
Henry to Kilohenry:
kH = H ÷ 1,000
Kilohenry to Henry:
H = kH × 1,000
Henry to Weber/Ampere:
Wb/A = H (1 H = 1 Wb/A exactly)
Inductance Formula:
L = Φ / I (where L is inductance, Φ is magnetic flux, I is current)
Inductance Conversion Table
Quick reference for converting between common inductance units:
| Unit | H | mH | µH | nH | pH |
|---|---|---|---|---|---|
| 1 H | 1 | 1,000 | 1,000,000 | 1,000,000,000 | 1,000,000,000,000 |
| 1 mH | 0.001 | 1 | 1,000 | 1,000,000 | 1,000,000,000 |
| 1 µH | 0.000001 | 0.001 | 1 | 1,000 | 1,000,000 |
| 1 nH | 0.000000001 | 0.000001 | 0.001 | 1 | 1,000 |
| 1 pH | 0.000000000001 | 0.000000001 | 0.000001 | 0.001 | 1 |
| 1 Wb/A | 1 | 1,000 | 1,000,000 | 1,000,000,000 | 1,000,000,000,000 |
| 0.000001 H | 0.000001 | 0.001 | 1 | 1,000 | 1,000,000 |
| 0.00001 H | 0.00001 | 0.01 | 10 | 10,000 | 10,000,000 |
| 0.0001 H | 0.0001 | 0.1 | 100 | 100,000 | 100,000,000 |
| 0.001 H | 0.001 | 1 | 1,000 | 1,000,000 | 1,000,000,000 |
| 0.01 H | 0.01 | 10 | 10,000 | 10,000,000 | 10,000,000,000 |
| 0.1 H | 0.1 | 100 | 100,000 | 100,000,000 | 100,000,000,000 |
| 1 H | 1 | 1,000 | 1,000,000 | 1,000,000,000 | 1,000,000,000,000 |
| 10 H | 10 | 10,000 | 10,000,000 | 10,000,000,000 | 10,000,000,000,000 |
| 100 H | 100 | 100,000 | 100,000,000 | 100,000,000,000 | 100,000,000,000,000 |
| 1,000 H | 1,000 | 1,000,000 | 1,000,000,000 | 1,000,000,000,000 | 1,000,000,000,000,000 |
| 10 µH | 0.00001 | 0.01 | 10 | 10,000 | 10,000,000 |
| 100 µH | 0.0001 | 0.1 | 100 | 100,000 | 100,000,000 |
| 1,000 µH | 0.001 | 1 | 1,000 | 1,000,000 | 1,000,000,000 |
| 10,000 µH | 0.01 | 10 | 10,000 | 10,000,000 | 10,000,000,000 |
| 100,000 µH | 0.1 | 100 | 100,000 | 100,000,000 | 100,000,000,000 |
| 1,000,000 µH | 1 | 1,000 | 1,000,000 | 1,000,000,000 | 1,000,000,000,000 |
Common Inductance Conversion Examples
Standard Inductances (H to mH):
- 0.001 H = 1 mH
- 0.01 H = 10 mH
- 0.1 H = 100 mH
- 1 H = 1,000 mH
- 10 H = 10,000 mH
- 100 H = 100,000 mH
- 1,000 H = 1,000,000 mH
Small Inductances (H to µH and nH):
- 1 × 10⁻⁶ H = 1 µH
- 1 × 10⁻⁵ H = 10 µH
- 1 × 10⁻⁴ H = 100 µH
- 1 × 10⁻³ H = 1,000 µH = 1 mH
- 1 × 10⁻⁹ H = 1 nH
- 1 × 10⁻⁸ H = 10 nH
- 1 × 10⁻⁷ H = 100 nH
Large Inductances (H to kH and MH):
- 1,000 H = 1 kH
- 10,000 H = 10 kH
- 100,000 H = 100 kH
- 1,000,000 H = 1 MH
- 10,000,000 H = 10 MH
- 100,000,000 H = 100 MH
- 1,000,000,000 H = 1,000 MH
Flux-to-Current Examples (Wb/A to H):
- 1 Wb at 1 A = 1 H = 1 Wb/A
- 0.001 Wb at 1 A = 0.001 H = 0.001 Wb/A
- 1 Wb at 1,000 A = 0.001 H = 0.001 Wb/A
- 0.000001 Wb at 1 A = 0.000001 H = 1 µH
- 1 Wb at 1,000,000 A = 0.000001 H = 1 µH
- 0.000000001 Wb at 1 A = 0.000000001 H = 1 nH
- 1 Wb at 1,000,000,000 A = 0.000000001 H = 1 nH
Frequently Asked Questions (FAQ)
How do I convert Henry to Millihenry?
To convert Henry to Millihenry, multiply the H value by 1,000. The formula is: mH = H × 1,000. For example, 0.001 H = 0.001 × 1,000 = 1 mH. One Millihenry equals exactly 0.001 Henrys by definition.
How many Henrys are in 1 Millihenry?
One Millihenry equals 0.001 Henrys. To convert mH to H, divide the mH value by 1,000. For example, 1,000 mH = 1,000 ÷ 1,000 = 1 H. This conversion is essential for understanding inductance values in circuit analysis and electronics.
What is the difference between inductance and magnetic flux?
Inductance (L) is the ability to store energy in a magnetic field per unit current, measured in Henrys. Magnetic flux (Φ) is the amount of magnetic field passing through a surface, measured in Webers. The relationship is: L = Φ / I. For example, an inductor with 1 Wb of flux at 1 A = 1 H inductance. Higher inductance means more energy can be stored for a given current change.
How do I convert Henry to Microhenry?
To convert Henry to Microhenry, multiply the H value by 1,000,000. The formula is: µH = H × 1,000,000. For example, 1 × 10⁻⁶ H = 1 × 10⁻⁶ × 1,000,000 = 1 µH. One Microhenry equals 10⁻⁶ Henrys by definition.
What is a Henry in simple terms?
A Henry is the SI unit of inductance, representing the ability of an inductor to store energy in a magnetic field. One Henry equals one Weber per Ampere (1 H = 1 Wb/A). In practical terms, an inductor with 1 H inductance stores significant energy when 1 A of current flows. It's essential for electromagnetics, electrical engineering, and circuit analysis.
How do I convert Millihenry to Microhenry?
To convert Millihenry to Microhenry, multiply the mH value by 1,000. The formula is: µH = mH × 1,000. For example, 1 mH = 1 × 1,000 = 1,000 µH. One Microhenry equals 0.001 Millihenrys by definition.
How do I convert Henry to Nanohenry?
To convert Henry to Nanohenry, multiply the H value by 1,000,000,000. The formula is: nH = H × 1,000,000,000. For example, 1 × 10⁻⁹ H = 1 × 10⁻⁹ × 1,000,000,000 = 1 nH. One Nanohenry equals 10⁻⁹ Henrys by definition.
What is the difference between Weber/Ampere and Henry?
Weber/Ampere and Henry are equivalent units for inductance (1 Wb/A = 1 H). This relationship comes from the definition: L = Φ / I, where L is inductance, Φ is magnetic flux in Webers, and I is current in Amperes. Therefore, 1 H = 1 Wb/A exactly.
Can I use this inductance converter for circuit calculations?
Yes! This inductance converter is perfect for circuit calculations. Circuits often use inductance measurements in Henrys, Millihenrys, Microhenrys, Nanohenrys, or Picohenrys. Convert between units to analyze inductance values, calculate time constants, and understand circuit behavior. For example, an inductance of 0.001 H = 1 mH = 1,000 µH = 1,000,000 nH = 1,000,000,000 pH.
How do I calculate inductance from magnetic flux and current?
To calculate inductance from magnetic flux and current, divide the magnetic flux by the current: L = Φ / I, where L is inductance in Henrys, Φ is magnetic flux in Webers, and I is current in Amperes. For example, an inductor with 0.001 Wb of flux at 1 A = 0.001 / 1 = 0.001 H = 1 mH inductance.
How do I convert between SI and CGS inductance units?
To convert between SI (Henry-based) and CGS inductance units: 1 H = 1,000,000,000 abhenry (EMU) and 1 H = 1.112 × 10⁻¹² stathenry (ESU). The conversion factors differ significantly between SI and CGS systems due to different base unit definitions. For EMU: multiply H by 1,000,000,000. For ESU: divide H by 898,755,178,737.
What units are supported in this inductance converter?
Our inductance converter supports 22 units including: Henry (H), Exahenry (EH), Petahenry (PH), Terahenry (TH), Gigahenry (GH), Megahenry (MH), Kilohenry (kH), Hectohenry (hH), Dekahenry (daH), Decihenry (dH), Centihenry (cH), Millihenry (mH), Microhenry (µH), Nanohenry (nH), Picohenry (pH), Femtohenry (fH), Attohenry (aH), Weber/ampere (Wb/A), Abhenry (abH), EMU of inductance, Stathenry (stH), and ESU of inductance. All conversions use precise conversion factors based on international standards.
How accurate is this inductance converter?
Our inductance converter uses precise conversion factors based on international standards. Results are calculated with high precision and automatically formatted for optimal readability. All conversions follow official SI unit definitions and internationally recognized inductance unit relationships.
What are common inductance values in electronics?
Common inductance values in electronics: 1 nH to 10 nH (very small, ICs), 10 nH to 100 nH (small, ICs), 100 nH to 1,000 nH (1 µH, common), 1 µH to 10 µH (common), 10 µH to 100 µH (common), 100 µH to 1,000 µH (1 mH, very common), 1 mH to 10 mH (very common), 10 mH to 100 mH (common), 100 mH to 1,000 mH (1 H, common), 1 H to 10 H (large inductors), 10 H to 100 H (power systems).
Real-World Applications
Circuit Design and Electronics
Inductance conversion is fundamental in circuit design and electronics for analyzing inductor values, calculating time constants, and understanding circuit behavior. Converting between Henrys, Millihenrys, Microhenrys, Nanohenrys, and Picohenrys helps engineers design efficient circuits and analyze inductor networks.
Power Systems
Power systems require large inductance measurements in Henrys, Kilohenrys, and Megahenrys. Converting between these units helps engineers design power systems, calculate energy storage, and understand transformer and inductor performance.
Integrated Circuit Design
Integrated circuit design requires very small inductance measurements in Picohenrys, Femtohenrys, and Attohenrys. Converting between these units helps engineers design efficient ICs, analyze parasitic inductances, and optimize circuit performance.
Physics Research
Physics research uses inductance measurements for analyzing material properties, calculating quantum effects, and understanding electromagnetic phenomena. Converting between SI and CGS units helps researchers work with different measurement systems.
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Tips for Inductance Conversion
- Quick Approximation: For H to mH, multiply by 1,000 (exact conversion)
- Remember Key Values: 1 H = 1,000 mH = 1,000,000 µH = 1,000,000,000 nH = 1,000,000,000,000 pH
- Inductance Formula: L = Φ / I - inductance equals magnetic flux divided by current
- Common Values: 1 µH, 10 µH, 100 µH, 1,000 µH (1 mH) are very common in electronics
- SI Prefixes: Standard SI prefixes apply (kilo, mega, micro, nano, pico, femto, atto)
- Alternative Unit: 1 Wb/A = 1 H exactly
- CGS Units: 1 abhenry = 10⁻⁹ H, 1 stathenry ≈ 8.988 × 10¹¹ H