Ohm's Law Calculator

Solve one unknown from two known values using V, I, and R relations, and view calculated power.

Ohm's Law Calculator

Solve the third value (V, I, R) from two known inputs and inspect power.

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When current or resistance is zero, divide-based modes are blocked.

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What Ohm's Law solves

Ohm's Law defines the relation between voltage, current, and resistance as V = I × R.

When two values are known, the third can be solved directly.

Why power is included

Power adds practical context to circuit sizing and load checks.

The calculator reports power with P = V × I using the solved result set.