4 Free Electronics Calculators

Electronics Calculators

Calculators for electronics and circuit design — Ohm's law, voltage, current, resistance, and power.

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Electronics Calculators 4 tools
01 Electronics Calculators

Battery Life / Runtime Calculator

Enter battery capacity and device draw to get runtime in seconds through...

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02 Electronics Calculators

LED Resistor Calculator

Get the exact resistor value, wattage, and color bands for any single,...

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03 Electronics Calculators

Ohm's Law Calculator

Enter any two of voltage, current, resistance, or power and instantly get...

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04 Electronics Calculators

Voltage Drop Calculator

Calculate voltage drop, load voltage, and the minimum wire size needed to...

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