Electrical unit converter
Convert voltage, current, resistance, capacitance and inductance.
This tool lets you change scale for voltage, current, resistance, capacitance and inductance without mixing quantities.
Result
Approximation
Quick explanation
Choose a quantity, enter a value, then select the source and target units.
The last selected quantity is stored locally in your browser to make future visits faster.
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Convert electric charge
For coulombs, Ah and mAh, use the electric charge converter.
Additional information
Why group these units?
Voltage, current, resistance, capacitance and inductance conversions mostly rely on SI prefixes: milli, micro, kilo, mega, nano or pico. Grouping them avoids several very thin tools.
Negative values
Negative values are allowed for voltage and current because they can represent a reference or conventional direction. They are blocked for resistance, capacitance and inductance.
Local memory
The tool stores only the selected quantity, such as Resistance or Capacitance. Entered values are not saved.
Privacy
All calculations are performed client-side, without sending data to the AppErgo server.
Limits and reuse
AppErgo tools are provided free of charge for practical and informational purposes. Although care is taken in their design, a result may be incomplete, unexpected or incorrect. Before relying on a result for any important use, check it using an appropriate method.
To report a bug in the tool, you can use the dedicated bug report form.
Results produced by AppErgo tools may be copied and reused freely. When publicly reusing a result, a method or an AppErgo page, a link to the relevant page is appreciated.
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For any other request, you can contact the webmaster.