Electrical and Engineering

Calculate Ohm's law, resistor color codes, power consumption, voltage dividers, and LED resistors.

8 tools

Ohm's Law Calculator

Calculate voltage, current, and resistance using Ohm's law. Enter any two values to find the third instantly.

Electrical and Engineering

Resistor Color Code Calculator

Decode resistor color bands to find resistance values or find the color code for a specific resistance.

Electrical and Engineering

Power Consumption Calculator

Calculate electricity usage in watts, kilowatt-hours, and estimated cost for any appliance or device.

Electrical and Engineering

Wire Gauge Converter

Convert between AWG (American Wire Gauge) and metric wire sizes. View diameter, area, and resistance.

Electrical and Engineering

Voltage Divider Calculator

Calculate output voltage, resistor values, or input voltage for a resistive voltage divider circuit.

Electrical and Engineering

LED Resistor Calculator

Find the correct resistor value and wattage to safely drive an LED from any supply voltage.

Electrical and Engineering

Frequency and Wavelength Converter

Convert between frequency and wavelength for electromagnetic waves, sound, and radio signals.

Electrical and Engineering

Decibel Calculator

Calculate decibel values for power and voltage ratios. Convert between dB, dBm, dBW, and linear units.

Electrical and Engineering

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