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How to convert amps to kVA
How to convert electric current in amps (A) to apparent power in kilovolt-amps (kVA).
You can calculate kilovolt-amps from amps and volts, but you can't convert amps to kilovolt-amps since kilovolt-amps and amps units do not measure the same quantity.
Single phase amps to kVA calculation formula
The apparent power S in kilovolt-amps is equal to current I in amps, times the voltage V in volts, divided by 1000:
S(kVA) = I(A) × V(V) / 1000
So kilovolt amps are equal to amps times volts divided by 1000.
kilovolt-amps = amps × volts / 1000
or
kVA = A · V / 1000
Example
What is the apparent power in kVA when the current is 12A and the voltage supply is 110V?
Solution:
S = 12A × 110V / 1000 = 1.32kVA
3 phase amps to kVA calculation formula
The apparent power S in kilovolt-amps is equal to current I in amps, times the voltage V in volts, divided by 1000:
S(kVA) = √3 × I(A) × V(V) / 1000
So kilovolt amps are equal to amps times volts divided by 1000.
kilovolt-amps = √3 × amps × volts / 1000
or
kVA = √3 × A · V / 1000
Example
What is the apparent power in kVA when the current is 12A and the voltage supply is 110V?
Solution:
S = √3 × 12A × 110V / 1000 = 2.286kVA
See also
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