Current Calculator
Calculate electrical current, voltage, resistance, and power in AC/DC circuits. Use Ohm's law and power formulas to determine current flow and electrical parameters.
Current Calculator
How to Use This Calculator
Select calculation type
Choose how you want to calculate current: from voltage and resistance, from power and voltage, or from power and resistance.
Choose electrical system
Select DC for direct current or AC (single/three phase) for alternating current systems.
Enter electrical parameters
Input the known values like voltage, resistance, power, power factor (for AC), frequency (for AC), and temperature.
Review results
View the calculated current, power information, circuit characteristics, and wire gauge recommendations.
Current Calculation Tips
Always use consistent units throughout your calculations.
For AC circuits, power factor affects the relationship between real and apparent power.
Temperature affects resistance - higher temperatures increase resistance in most materials.
Wire gauge recommendations are based on current-carrying capacity and safety standards.
DC circuits are simpler as they don't involve power factor or frequency considerations.
Always consider safety when working with high current applications.