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Watts to Amps Converter
All physics tools
Convert electrical power (Watts) to current (Amps).
Inputs
Circuit Type
Watts (W)
Volts (V)
Reset
Result
Amperage
-
Amps
About this calculator
Quick Reference
120V 100W
0.83 Amps
240V 100W
0.415 Amps
Overview
Use Ohm's law and power equations to find the current flowing through a circuit based on its power consumption and voltage.
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Pro Tips
Select DC for batteries and simple electronics.
Select AC Single Phase for standard household appliances.
Select AC Three Phase for heavy industrial machinery.
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Fun Facts
"Amps kill, but it takes Voltage to drive the current through electrical resistance (like skin)."
"Most smartphones charge at about 1-3 Amps at 5 Volts."
Formula: I = P / V
