Convert AC voltage or current to DC using full-wave rectification formulas. Includes power factor for practical load calculations.

DC Voltage: 76.32 V
Equivalent DC Power (w/ PF): 76.32 W per Amp

Formula: Vdc = Vac × 0.636 (full-wave rectification). Power factor applies to AC power calculations.

What is AC to DC Conversion?

Converting alternating current (AC) to direct current (DC) is known as rectification. This is a fundamental process in electronics, enabling the use of AC mains power for devices that require stable DC voltage, such as battery chargers, computers, and LED drivers[citation:3][citation:7].

A rectifier, typically made using diodes, allows current to flow in only one direction, thus converting the bi-directional AC waveform into a unidirectional DC pulse[citation:3]. The simplest form is a half-wave rectifier, but a more efficient full-wave rectifier utilizes both halves of the AC sine wave, producing a smoother DC output[citation:3][citation:10].

V_dc = V_rms × 0.636

Here, V_rms is the Root Mean Square value of the AC voltage — which is the standard "120V" or "230V" labeled on household outlets — and 0.636 is the constant derived from the full-wave rectification formula (2√2/π)[citation:10][citation:12].

In practical applications, the power factor (PF) is also crucial. The power factor represents the efficiency of power usage in AC circuits, and it affects the real power (Watts) delivered to a load[citation:5]. This calculator allows you to apply the power factor to understand the equivalent DC power output.

How to Use This Calculator

1. Enter AC Value: Input the AC voltage or current (RMS value). For example, use 120V or 230V for standard wall outlets.
2. Select Conversion Type: Choose whether you are converting “AC Voltage (RMS) to DC Voltage” or “AC Current (RMS) to DC Current”.
3. Enter Power Factor: Input the power factor of your AC system. A typical value is 0.8 for general loads, and 1.0 for purely resistive loads.
4. Calculate: Click the “Convert to DC” button or press Enter.
5. Reset: Use the “Reset” button to restore default values (120V, 0.8 PF).
6. Interpretation: The result shows the equivalent DC voltage or current. For example, 120V AC (RMS) yields approximately 76.3V DC after full-wave rectification. The “Equivalent DC Power” helps estimate the power you can expect, factoring in efficiency.