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Calcimator

Ohm's Law Current Calculator

Calculate electric current from voltage and resistance using Ohm's law (I = V / R).

Inputs

Results

Current (A)

3

Power (W)36
How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Voltage (V) β€” enter a numeric value. Minimum value: 0 (default: 12).
  3. Resistance (Ξ©) β€” enter a numeric value. Minimum value: 0.0001 (default: 4).
  4. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  5. Current (A) β€” shown as a numeric value. This is the primary result of this calculator.
  6. Power (W) β€” shown as a numeric value.
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