FVDRC
Feedback Voltage Divider Resistor Calculator

R2 from VRef, R1 and VOUT

Inputs

Parallel R Series R
:
:
:
:

Outputs

   
: Ω
: V
: %
: A
: W
: W
R2 = R1 / ((VOUT / VRef) - 1);

R1 from VRef, R2 and VOUT

Inputs

Parallel R Series R
:
:
:
:

Outputs

   
: Ω
: V
: %
: A
: W
: W
R1 = R2 * ((VOUT / VRef) - 1)

Round to E series

Inputs

Parallel R Series R
:
:
:
:
:

Outputs

   
: Ω
: %
: Ω
: %

VOUT from VRef, R1 and R2

Inputs

Parallel R Series R
:
:
:
:
:

Outputs

   
: V
: %
: A
: W
: W
VOUT = VRef * (1 + (R1 / R2))

VRef from R1, R2 and VOUT

Inputs

Parallel R Series R
:
:
:

Outputs

   
: V
: A
: W
: W
VRef = VOUT / (1 + (R1 / R2))

List of E series


Log:


github


Changelog:

20240415 release
20240416 support responsive
20240416 add Round to E series
20240417 minor modification of HTML
20240509 add Series Resistor input and License text in HTML
20240619 minor visual changes
20240626 resistor power calc and type "auto" to para/ser resistance calc
20240908 align the rows of the Inputs and Outputs columns
20251005 add Ideal R Input in Round to E series
created by kohanii