How it works
Select which two values you know. Enter them in the same order shown in the selector.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
3-
?knownPair=Known valuesChoice · Required · Default: voltageResistance · Accepted values: voltageResistance, voltageCurrent, currentResistance, powerVoltage, powerCurrent, powerResistance
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?firstValue=First selected valueNumber · Required · Default: 12
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?secondValue=Second selected valueNumber · Required · Default: 6
Outputs
4-
powerPowerNumber · Primary output · Suffix: W
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voltageVoltageNumber · Suffix: V
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currentCurrentNumber · Suffix: A
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resistanceResistanceNumber · Suffix: Ω
Safety
This is a formula tool, not electrical installation guidance.