Use this Online tool for Amps (A) to kilovolt-amps (kVA) calculator.Select phase number from the drop-down list and input the current in amps(A), the voltage(V) in volts and click  the Calculate button to obtain  the apparent power in result(in kilovolt-amps).

Choose phase :
Input amps: A
Input volts: V
Result kilo-volt-amps: kVA






How to convert electric current in amps (A) to apparent power in kilovolt-amps (kVA)?

amps(A) to kVA calculation formula in Single phase

S(kVA) = I(in amps) × V(in Volts) / 1000

So that you can define kilovolt-amps are equivalent to amps(A) times volts(V) divided by 1000.

kilovolt-amps = amps(A) × volts(V) / 1000
or
kVA = A x V / 1000

Let’s take one example
Example#1
Find out the apparent power in kVA(S) where the phase current(I) is 10A and the RMS(root mean square) voltage supply is 120V in the circuit.
Apply formula for the solution:
S = 10A × 120V / 1000 = 12kVA

Online amps to kVA calculation formula in 3 phase (Calculation with line to line voltage)

S(kVA) = √3 × I(in Amps) × VL-L(in Volts) / 1000

So that you can define kilovolt-amps(Kva) are equal to 1.732 times amps(A) times volts(V) divided by 1000.

kilovolt-amps = 1.732 × amps(A) × volts(V) / 1000
or
kVA = 1.732 × A x V / 1000
Let’s take one example

Example#2
Calculate the apparent power(S) in kVA where the phase current(I) is 10A and the line to line RMS(root mean square) voltage(V) supply is 120V in the circuit.
Apply formula for the solution:
S = 1.732 × 10A × 120V / 1000 = 2.07kVA

Online amps to kVA calculation formula in 3 phase (Calculation with line to neutral voltage)

S(kVA) = 3 × I(in Amps) × VL-N(in Volts) / 1000

So that you can define kilovolt-amps(Kva) are equivalent to 3 times amps(A) times volts(V) divided by 1000.

kilovolt-amps = 3 × amps(A) × volts(V) / 1000
or
kVA = 3 × A x V / 1000
Let’s take one example

Example#3
Find out the apparent power(S) in kVA where the phase current(I) is 10A and the line to neutral RMS(Root Mean Square) voltage(V) supply is 110V in the circuit.
Apply formula for the solution:
S = 3 × 10A × 110V / 1000 = 3.3kVA

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