Inductance Calculator
L = μ₀N²A/ℓ for an ideal solenoid, or V = L(dI/dt) for the defining equation.
Result
Inductance
0.00001257 H
0.0126 mH · 12.5664 µH.
- µ₀ (vacuum permeability)4π × 10⁻⁷ T·m/A
- Henrys0.0000125664
- mH0.012566
- µH12.5664
Step-by-step
- L = μ₀ × N² × A / ℓ = (1.257e-6) × 100² × 0.0001 / 0.1 = 0.00001257 H.
How to use this calculator
- Enter solenoid parameters: turns, cross-section area, and length.
- Read inductance in H, mH, µH.
About this calculator
Inductance L resists changes in current. For an ideal solenoid: L = μ₀N²A/ℓ (where μ₀ = 4π × 10⁻⁷ T·m/A is vacuum permeability). The defining equation: V = L(dI/dt) — voltage across an inductor is proportional to rate of current change. Energy stored: E = ½LI².
Frequently asked
Resists rapid changes in current. Stores energy in magnetic field. Used in filters (low-pass), transformers, and energy storage in switching power supplies.
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