Electrical Engineering Calculators
Explore our collection of online calculators designed for electrical engineers and students. Instantly calculate Ohm’s Law, Voltage Drop, Power Factor, and more with accurate, professional-grade tools.
Ohm's Law Calculator
Calculate V, I, R, P with any two known values. Automatic cross-calculation between all parameters.
Voltage Drop Calculator
Single-phase and three-phase circuits. Wire gauge selection and NEC compliance.
Power Factor Correction Calculator
AC circuit analysis, capacitor sizing for PF correction, multiple input modes.
AC/DC Current Calculator
Three-phase and single-phase calculations. Power-to-current and current-to-power modes.
Resistor Color Code Calculator
4, 5, and 6-band resistor support. Bidirectional calculation and tolerance info.
Transformer Turns Ratio Calculator
Step-up/step-down transformer design. Voltage, current, and turns ratio analysis.
Capacitor/Inductor Reactance Calculator
XL = 2πfL, XC = 1/(2πfC) calculations, LC resonance, unit conversions.
Series/Parallel Resistance/Capacitance Calculator
Dynamic component addition/removal. Full V, I, P analysis for resistors and capacitors.