# Electronics

Circuit calculations start from Ohm's law, V = I × R, and the power formula P = V × I. They extend to resistor color codes, series and parallel resistance, voltage dividers, capacitor and inductor values, RC time constants and LED current-limiting resistors. Unit changes such as milliamps to amps belong to the Electricity section of Unit Converters.

## Tools

- Ohm's Law Calculator (Coming soon): Find voltage, current, resistance or power from any two known values using Ohm's law.

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Category: [Science & Engineering Calculators](https://techolm.com/science-calculators)