Choose current type from drop-down list,input power(P in watts),voltage(in volts) and input the PF and click the Calculate button.
How to convert electric power in watts (W) to electric current(I) in amps (A)?
watts to amps calculation formula in case of Direct Current
So that you can define “Current are equivalent to the power(in watts) divided by volts(V).
I=The current I in amps (A)
p=the power P in watts (W)
V=the voltage V in volts (V)
Let’s take an example
Example#1
Wee need to Find out the current(I) in amps where the power(P) is 300 watts and the voltage(V) supply is 100 volts in the circuit.
I = 300W / 100V = 3A
How to convert watts to amps?
watts to amps calculation formula in AC single phase
I= Current in amps (A)
P=the power P in watts (W)
PF=the power factor PF
V=the Root Mean Square voltage V in volts (V)
So that you can define Current(in amps) are equal to the Power(in watts) divided by PF times volts(V).
or you can re-write formula like this
Let’s take an example
Example#1
Find out the current(I) in amps where the power(P) is 300 watts and the PF is 0.8 and the Root Mean Square voltage(V) supply in the circuit is 100 volts
I = 300W / (0.8 × 100V) = 3.75A
watts to amps calculation formula in case of AC three phase line to line voltage
I=The phase current I in amps (A)
P=the real power P in watts (W)
PF=power factor PF
VL-L=the line to line Root Mean Square voltage VL-L in volts (V)
So that you can define “Current(I) amps are equal to Power(in watts) divided by 1.732 PF times volts”
or You can re-write this formula like this
Let’s take an example
Example#2
Find out the current(I) in amps where the power(P) is 300 watts, the PF is 0.8 and the Root Mean Square voltage(V) in the circuit is 100 volts.
I = 300W / (1.732 × 0.8 × 100V) =300/138.56=2.165A
In case of line to neutral voltage
I=The phase current I in amps (A)
P=the real power P in watts (W)
PF=the power factor PF
VL-0=the line to neutral Root Mean Square voltage VL-0 in volts (V)
So that you can define Cuurent(I) amps are equal to the power(P in watts) divided by 3 times PF times volts(V).
or you can rewrite this formula like this
Let’s take an example
Example#3
Find out the current(I) in amps where the power(P) is 300 watts, the PF is 0.8 and the Root Mean Square voltage(V) in the circuit is 100 volts
I = 300W / (3 × 0.8 × 100V) =300W/240=1.25A
where DC = Direct Current, AC = Alternating Current
Try More Conversion
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