Electrical & Electronics
Calculate, simulate, and design electronic circuits
Ohm's Law Calculator
Calculate voltage, current, and resistance using Ohm's law.
Open Tool →Resistor Color Code Calculator
Decode resistor values from color bands or find bands from values.
Open Tool →LED Resistor Calculator
Calculate the correct resistor value for LEDs in your circuit.
Open Tool →Voltage Divider Calculator
Calculate output voltage and resistor values for voltage dividers.
Open Tool →Capacitor Charge Calculator
Calculate charging and discharging time for RC circuits.
Open Tool →Inductor Energy Calculator
Calculate energy stored in an inductor.
Open Tool →Power Calculator (Watts)
Calculate electrical power from voltage, current, and resistance.
Open Tool →Wire Gauge Calculator (AWG)
Find the right wire gauge for your current and distance requirements.
Open Tool →Battery Life Calculator
Estimate how long a battery will last based on capacity and load.
Open Tool →Series & Parallel Resistor Calculator
Calculate total resistance for series and parallel resistor networks.
Open Tool →Capacitor Series & Parallel Calculator
Calculate equivalent capacitance for series and parallel combinations.
Open Tool →Transformer Turns Ratio Calculator
Calculate transformer turns ratio, voltage, and current relationships.
Open Tool →RC Time Constant Calculator
Calculate time constant for resistor-capacitor circuits.
Open Tool →Frequency to Wavelength Converter
Convert between frequency and wavelength for electromagnetic waves.
Open Tool →Decibel (dB) Calculator
Convert between decibels and power or voltage ratios.
Open Tool →AC Power Factor Calculator
Calculate real, reactive, and apparent power in AC circuits.
Open Tool →Kirchhoff's Law Calculator
Solve circuits using Kirchhoff's voltage and current laws.
Open Tool →Op-Amp Gain Calculator
Calculate gain for inverting and non-inverting op-amp configurations.
Open Tool →555 Timer Calculator
Calculate frequency and duty cycle for 555 timer circuits.
Open Tool →PCB Trace Width Calculator
Calculate required PCB trace width for a given current.
Open Tool →Electrical Unit Converter
Convert between electrical units like volts, amps, watts, and ohms.
Open Tool →Fuse Size Calculator
Determine the correct fuse size for your electrical circuit.
Open Tool →Motor Horsepower Calculator
Calculate motor horsepower from torque and RPM.
Open Tool →Solar Panel Calculator
Estimate solar panel output based on size, efficiency, and sunlight.
Open Tool →Electricity Cost Calculator
Calculate electricity cost based on power consumption and rates.
Open Tool →Wheatstone Bridge Calculator
Calculate unknown resistance using a Wheatstone bridge circuit.
Open Tool →RLC Circuit Calculator
Calculate resonant frequency and impedance for RLC circuits.
Open Tool →Zener Diode Calculator
Calculate resistor values for Zener diode voltage regulation.
Open Tool →Heat Sink Calculator
Calculate thermal resistance and heat sink requirements.
Open Tool →Coil Inductance Calculator
Calculate inductance for air-core and toroidal coils.
Open Tool →Star-Delta Conversion Calculator
Convert between star (Y) and delta (Δ) resistor networks.
Open Tool →Coulomb's Law Calculator
Calculate electrostatic force between two charges.
Open Tool →Electrical Wire Resistance Calculator
Calculate wire resistance from material, length, and cross-section.
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