Free online calculators and tools for electrical engineers and students
Calculate three-phase power parameters including voltage, current, and power factor.
Use CalculatorCalculate electricity usage and costs for various devices and appliances.
Use CalculatorDetermine capacitor size needed to improve your system's power factor.
Use CalculatorCalculate efficiency and losses in power transformers under various load conditions.
Use CalculatorOptimize distribution of electrical loads across three phases for balanced systems.
Use ToolConvert between real, reactive, and apparent power components in AC circuits.
Use ConverterCalculate current distribution in parallel resistive circuits.
Use CalculatorAnalyze time and frequency response of common electrical circuit configurations.
Use CalculatorDesign rectifier circuits and calculate output voltages and ripple factors.
Use CalculatorDecode capacitor markings and color codes to determine capacitance values.
Use CalculatorDesign passive and active filters with specified cutoff frequencies and response types.
Use CalculatorAnalyze time-domain response of circuits during switching operations.
Use CalculatorCalculate proper conduit sizes based on cable quantity and dimensions.
Use CalculatorDetermine proper cable gauge based on current, distance, and voltage drop.
Use CalculatorCalculate appropriate overcurrent protection device ratings for circuits.
Use CalculatorDetermine appropriate PCB trace widths based on current requirements.
Use CalculatorConvert between American Wire Gauge and metric wire size standards.
Use ConverterCalculate gain and component values for operational amplifier circuits.
Use CalculatorCalculate and analyze signal-to-noise ratios for electronic systems.
Use CalculatorConvert between decibels and voltage/power measurements.
Use ConverterGenerate and visualize various signal waveforms for electronic design.
Use ToolEstimate battery runtime based on capacity and load requirements.
Use CalculatorSize inverters appropriately for your power conversion needs.
Use CalculatorCalculate solar panel requirements based on electrical load needs.
Use CalculatorCalculate inrush current and starting requirements for motors.
Use CalculatorCalculate parameters for stepper motor control applications.
Use CalculatorSize and configure variable frequency drives for motor applications.
Use CalculatorCalculate earth grounding resistance for electrical safety systems.
Use CalculatorEstimate potential fault currents in electrical systems.
Use CalculatorCalculate arc flash hazard levels and required protection equipment.
Use CalculatorCalculate and analyze electrical insulation resistance measurements.
Use CalculatorCalculate potential energy and cost savings from efficiency improvements.
Use CalculatorConvert between various electrical units and measurement systems.
Use ConverterCalculate key parameters for various antenna designs and configurations.
Use CalculatorCalculate optimal PID controller parameters for control systems.
Use CalculatorCalculate temperature-dependent resistance values for thermistor applications.
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