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Magnetic Permeability Calculator — result sheet
Calculate absolute and relative magnetic permeability from magnetic flux density and magnetic field strength.
Inputs used
Results
Visual chart
Breakdown
Calculation steps
Returned data table
Formula and methodology
Formula: μ = B/H; μᵣ = μ/μ₀, where μ₀ = 4π×10⁻⁷ H/m.
The calculator forms the ratio of flux density to field strength and compares it with the permeability of free space to provide a dimensionless relative value.
This result follows the calculator's declared inputs, precision, validation boundaries, and model limits.
Input contract
- Magnetic flux density B — mT; minimum 0; maximum 1000000000
- Magnetic field strength H — A/m; minimum 1.0E-6; maximum 1000000000000
Worked example
| Input | Value |
|---|---|
| Magnetic flux density B | 50 |
| Magnetic field strength H | 10000 |
Absolute permeability is 5.0×10⁻⁶ H/m and relative permeability is about 3.98.
Assumptions and limits
- B is entered in millitesla and H in amperes per metre; the field values describe the same point and operating condition.
- The ratio is an effective local permeability estimate and does not model hysteresis, saturation, frequency dependence, anisotropy, or demagnetization geometry.
- A relative permeability result does not identify a material grade or certify a magnetic component.
Calculator note
Source and methodology
Use the official WorldCalculate methodology policy for the source, formula, precision, and boundary standards behind this calculator.
Planning estimate, not financial, medical, legal, or professional advice. © WorldCalculate — reuse with attribution. Built and curated by Hassan ALRowaie.
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