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Watts / Amps / Volts Calculator
Enter any two values to calculate the rest
DC
AC 1-Phase
AC 3-Phase
Watts (W)
Volts (V)
Amps (A)
Ohms (Ω)
Power Factor
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Ohm's Law Formulas
V = I × R
Voltage
I = V / R
Current
P = V × I
Power
R = V / I
Resistance
P = I² × R
Power from I,R
P = V² / R
Power from V,R