Ohm’s Law Calculator
Solve voltage, current, resistance and power from any two values.
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Free electronics calculators on electronmagazine.com — fast, private, and browser-based.
Resistor Color Code Calculator
Decode 4-band and 5-band resistor color codes with tolerance.
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Find the series resistor and power rating needed to drive an LED.
Use ToolVoltage Divider Calculator
Calculate output voltage of a two-resistor divider, with a live diagram.
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