Trade calculators

Fast electrical and electronics calculations.

Use these as learning tools and quick checks. They are deliberately simple in the MVP so the maths stays visible.

Safety first, always.

ElectroLab AI teaches theory, low-voltage electronics, and planning concepts. Mains voltage, switchboards, fixed wiring, high-current systems, and legal electrical work must only be performed by licensed electricians where required.

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Ohm's Law

Find current from voltage and resistance.

I = V / R

Power

Calculate electrical power from voltage and current.

P = V x I

Transformer Turns Ratio

Estimate secondary voltage from primary voltage and turns.

Vs = Vp x Ns / Np

RC Time Constant

Find the charging time constant for a resistor-capacitor circuit.

tau = R x C

RL Time Constant

Find the current-rise time constant for a resistor-inductor circuit.

tau = L / R

RLC Resonance

Estimate the resonant frequency of an LC tank.

f = 1 / (2pi sqrt(LC))

Speaker Crossover Frequency

Find first-order crossover frequency from impedance and capacitor.

f = 1 / (2pi R C)

Solar Battery Runtime

Estimate battery runtime from capacity, voltage, load, and efficiency.

hours = Ah x V x efficiency / load W