Step-by-step instructions
- Enter or select RMS voltage (V).
- Enter or select RMS current (A).
- Enter or select Power factor.
- Tap Calculate.
- Review the result shown directly below the calculator.
AC Real Power Calculator
Calculate real power P = VI × power factor.
How to use the AC Real Power Calculator
Calculate real power P = VI × power factor.
What the inputs mean
- RMS voltage (V)
- Enter the value requested by this field label.
- RMS current (A)
- Enter the value requested by this field label.
- Power factor
- Enter the value requested by this field label.
Formula or calculation method
The calculator applies the standard mathematical relationship for the labeled inputs and returns the computed result automatically.
Example
Try entering realistic values for RMS voltage (V) and RMS current (A), then tap Calculate to see how the result changes.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.