CapacitorCalc

Quickly calculate the right capacitor for your AC‑DC circuit. Perfect for power supply design, electronics projects, and learning!

Easily calculate the minimum required capacitor value for your AC‑DC transformer circuit.

This app helps you determine: • The minimum capacitance needed (in pF, nF, µF, mF or F) • The minimum ripple voltage across the capacitor

Just enter the voltage, current, and frequency of your transformer — and get instant results. Great for electronics enthusiasts, students, and hobbyists working with power supplies or rectifier circuits.