Examples
Examples
Try the starting example
- Real power (W)
- 800
- Apparent power (VA)
- 1000
- Power factor
- 0.8
- Reactive magnitude (var)
- 600
Try another scenario
- Real power (W)
- 880.0000000000001
- Apparent power (VA)
- 1000
- Power factor
- 0.88
- Reactive magnitude (var)
- 474.973683
Calculation method
Calculation method
Power factor
a ÷ b
Reactive magnitude (var)
sqrt(b × b-a × a)
Symbols and units
- a
- Real power (W)
- b
- Apparent power (VA)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Calculation steps and notation
sqrt(x) is the non-negative square root of x.
Assumptions & limits
Assumptions & limits
- This magnitude relation assumes the appropriate sinusoidal model; it does not determine leading versus lagging power factor.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.