Potential Divider Calculator
Enter known values then click on the appropriate
Calculate
button. Clicking
Calculate R1 and R2
will find the optimum pair of resistors from the selected range of preferred values, for a given V
in
and V
out
.
Vin
R1
Vout
R2
Preferred Value Series:
E6
E12
E24
E48
E96
Resistor Tolerance:
5%
1%
0.5%
0.1%
Other
%
Which voltage is fixed?:
V
in
V
out
Voltage Tolerance:
5%
1%
0.5%
0%
Other
%
Ideal Values
V
in
V
V
out
V
R
1
kΩ
R
2
kΩ
Real Values
Maximum
Typical
Minimum
V
in
V
V
in
V
V
in
V
V
out
V
V
out
V
V
out
V
R
1
kΩ
R
1
kΩ
R
1
kΩ
R
2
kΩ
R
2
kΩ
R
2
kΩ