led resistance calculator

enter the value and click "calculate", the calculation result will be displayed.

enter a value:

supply voltage:
Volts
led forward voltage:
Volts
led current:
miliAmps

calculation result:

resistor:
Ohms
led resistor calculator

enter the values ​​and click calculate. will show results

usage examples
enter data:

power supply voltage: 220v

forward led voltage: 120v

led current: 90a

output data:

resistor: 1.11e+3

things to note
the power supply voltage is greater than the led forward voltage
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