What makes this different
Most voltage divider calculators stop at ideal Vout. This solver also estimates loaded output, load error, divider current, and output impedance.
Voltage Divider Solver
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Voltage divider calculator with load correction
Best use case
Voltage dividers are good for references and sensor scaling when the load resistance is much larger than R2. They are not a replacement for a voltage regulator.
Design tip
For accurate output, keep the load resistance at least 10x higher than the divider's output impedance. Higher ratios reduce load-induced voltage drop.