What the tool does, how to run it, and what to expect from the result.
Ohm's law relates voltage, current, and resistance: V = I x R. Power adds a 4th relationship: P = V x I. Given any 2 of the 4 values, the other 2 can always be derived; pick which 2 you know and the rest solve automatically.
A quick way to understand who this helps, what it solves, and where it connects next.
Hobbyists, students, and engineers working through a basic circuit calculation.
Solving Ohm's law (V=IR) and power (P=VI) problems without doing the algebra by hand.
Short answers for the questions people usually have before trying a utility like this.
Yes. It is completely free, with no sign-up and no usage limits.
Volts (V), amps (A), ohms (Ω), and watts (W), the standard SI electrical units.
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Enter any 2 of voltage, current, resistance, or power to get the other 2.
12.000 VVoltage
2.000 ACurrent
6.000 ΩResistance
24.000 WPower