The divider ratio
V_out = V_in × R2 / (R1 + R2). A real load draws current and lowers the output.
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Voltage Divider Calculator
Output voltage of a two-resistor divider and the current through it.
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Calculate the tap voltage and understand why a connected load changes it.
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Assumptions and limits.
- Unloaded divider; the load is not modelled.
Frequently asked questions
Can I use this to power a load?
A simple divider is a reference, not a regulator. Use a proper regulator for a load.