How this calculator works
Electrical power equals voltage multiplied by current: P = VI.
Formula
P=VIElectrical power from voltage and current.
Worked example
Verified example is a verified test case used by the calculation engine.
Assumptions and limitations
- Voltage and current may be signed.
- The sign of power follows the entered sign convention.
- Use compatible electrical units.
Methodology & sources
This calculator uses deterministic, versioned calculation logic. The formula and verified examples above are part of the calculation definition used by CalcuMint. Technical calculation version: 1.
- CalcuMint deterministic physics engine
Frequently asked questions
Can electrical power be negative?
Yes. Signed inputs can represent power delivery or absorption conventions.
Is the result deterministic?
Yes. Identical validated inputs produce the same numeric result.