Advanced Electrical Calculator
Calculate voltage, current, power, resistance, wire sizing and voltage drop for any electrical project
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Calculation Results
Enter values to calculate electrical parameters.
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Electrical Calculation Tutorial
How to Use the Electrical Calculator
This comprehensive tool helps you solve all essential electrical calculations for your projects. Follow these simple steps:
Select Calculation Type
Choose between Ohm's Law, Wire Sizing, or Voltage Drop calculations based on your needs.
Enter Known Values
Input the electrical parameters you already know. The calculator will automatically show relevant fields.
Calculate Results
Click the calculate button to get precise results with detailed explanations and formulas.
Electrical Formulas Used
Ohm's Law
V = I × R
Voltage (V) = Current (I) × Resistance (R)
Power Formula
P = V × I
Power (W) = Voltage (V) × Current (A)
Wire Sizing
Based on NEC ampacity tables with adjustments for distance and material.
Voltage Drop
Vdrop = 2 × I × R × L / 1000
Where R is resistance per 1000ft
Why Calculate Electrical Parameters?
Safety First
Prevent circuit overloads, overheating, and electrical fires by proper calculation.
Efficiency
Optimize electrical systems for maximum performance and energy savings.
Code Compliance
Ensure your projects meet NEC requirements and pass inspections.
