AC Power Calculator
Calculate single-phase real power from voltage, current and power factor.
Formula
Single-phase real power P = VI × power factor.
Practical Example
Enter a small set of values from a known example and calculate the result. Check the magnitude and units, then adjust one variable to see how the formula responds.
Factors That Affect the Result
Measurement accuracy, units, constants, significant figures and formula assumptions affect scientific and engineering results. Chemistry calculations can also depend on balanced reactions, molar mass, concentration and experimental conditions.
Frequently Asked Questions
Should I keep units consistent?
Yes. Use the units requested by the calculator and convert values when necessary.
Can rounding affect the answer?
Yes. Significant figures and intermediate rounding can create small differences.
Should experimental results match exactly?
Not always. Real measurements can differ from idealized formula results.