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LM317 calculator

Enter the desired output voltage and approximate resistor divider current, and the calculator finds the optimum values for R1 and R2.

LM317 calculator

Vout
V (between 1.25V and 37V)
IR1
R1
R2

These resistor values result in the following actual values for output voltage and R1 current:

Vout
Error
IR1

Disclaimer: this calculator comes without guarantee. Use at your own risk. If you would find errors, please let me know, and include the parameters used and the results you got.