Watts to Voltage Calculator
Use this free watt to voltage calculator to convert power to voltage based on current. Supports DC, AC single-phase, and three-phase systems with power factor.
Quick Intro: Convert Watts to Volts
To calculate voltage from watts, divide power (watts) by current (amps). For AC systems, voltage also depends on the power factor and system phase. This calculator handles DC, single-phase, and three-phase AC automatically, applying the correct formula and giving accurate voltage values in seconds.
Formulas for Voltage Calculation
- DC:Volts = Watts ÷ Amps
- AC Single-Phase:Volts = Watts ÷ (Amps × Power Factor)
- AC Three-Phase:Volts = Watts ÷ (√3 × Amps × Power Factor)
*Use power factor = 0.8 if unknown.
Watt to Voltage Calculator Overview
TheWatt to Voltage Calculatoris a simple tool that helps you calculate voltage when you know the power (in watts) and the current (in amps). It supports all major electrical systems, includingDC,single-phase AC, andthree-phase ACwith optional power factor. Just enter the wattage and current values, and the calculator will instantly return the correct voltage.
Sample Data Table
| Power (Watts) | Current (Amps) | Type | Power Factor | Voltage (Volts) |
|---|---|---|---|---|
| 1000 W | 5 A | DC | — | 200 V |
| 2000 W | 10 A | Single-Phase | 0.8 | 250 V |
| 3000 W | 5.5 A | 3-Phase | 0.8 | 393.75 V |
