Electronics Calculators

Solenoid Inductance Calculator – Turns, Core, Dimensions Home›Electronics Calculators›Inductors›Solenoid Inductance Calculator This calculator requires JavaScript. L = μ₀μrN²A / l Single-layer solenoid. Find inductance from geometry, or turns from target… read more

Helical Coil Calculator – Wheeler’s Approximation & Wire Length Home›Electronics Calculators›Inductors›Helical Coil Calculator This calculator requires JavaScript. Wheeler’s Approximation Single-layer air-core coil. Inductance, wire length, and DC resistance. RF Coil… read more

Toroid Inductor Calculator – AL Value, Turns & Core Geometry Home›Electronics Calculators›Inductors›Toroid Inductor Calculator This calculator requires JavaScript. Toroid: L = AL × N² Three modes: L from A_L, find… read more

Inductance Calculator – From Reactance, Resonance, or V/dI/dt Home›Electronics Calculators›Inductors›Inductance Calculator This calculator requires JavaScript. Find Inductance L Three methods: from X_L and f, from LC resonance, or from V… read more

Solenoid Magnetic Field Calculator – Flux Density & Field Strength Home›Electronics Calculators›Inductors›Solenoid Magnetic Field Calculator This calculator requires JavaScript. B = μ₀μr × N × I / l Magnetic flux… read more

Inductor Current Calculator – RL Circuit Current Rise & Time Constant Home›Electronics Calculators›Inductors›Inductor Current Calculator This calculator requires JavaScript. Key formula:I(t) = (V/R)(1 − e−t/τ) I(t) = (V/R)(1 − e−t/τ)… read more

Mutual Inductance Calculator – Coupling Coefficient & Transformer Design Home›Electronics Calculators›Inductors›Mutual Inductance Calculator This calculator requires JavaScript. Key formula: M = k×√(L₁×L₂) M = k × √(L₁ × L₂) Find… read more

RL Time Constant Calculator – Inductance, Resistance & Timing Home›Electronics Calculators›Inductors›RL Time Constant Calculator This calculator requires JavaScript. Key formula: τ = L / R τ = L / R… read more

Inductor Energy Calculator Home›Electronics Calculators›Inductors›Inductor Energy Calculator This calculator requires JavaScript. Key formula:E = ½LI² E = ½LI² — Enter Any Two, Solve for the Third Leave one field empty… read more

Inductive Load Calculator – Flyback Voltage, Stored Energy & Turn-Off Spike Home›Electronics Calculators›Inductors›Inductive Load Calculator This calculator requires JavaScript. Inductive Load Analysis Steady-state current, stored energy, turn-off spike, and protection… read more