25 kVA at 220 V
- Volt-amps
- 25000 VA
- Phase
- Single-phase
- Phase factor
- 1
kVA is apparent power. Transformer, UPS, breaker, and conductor sizing still need the equipment instructions and qualified review.
kVA to Amps Calculator
Use this free kVA to amps calculator to estimate current from kilovolt-amps, voltage, and phase type.
Research-backed assumptions Formula steps Examples included Private in-browser use
Formula steps
- Convert kVA to volt-amps.
- Use volts for single-phase, or volts times square root of 3 for three-phase.
- Divide volt-amps by that voltage factor to estimate amps.
How to use the kva to amps calculator
- Enter kVA, voltage, and single-phase or three-phase mode.
- Press Calculate amps to convert apparent power into current.
- Remember kVA already uses apparent power, so this tool does not ask for power factor.
- Use manufacturer and electrician guidance for transformer, UPS, and panel sizing.
Common uses
Estimate transformer or UPS current from a kVA rating.
Compare single-phase and three-phase current.
Understand apparent power separately from real power.
Check a rough current number before professional equipment sizing.
Examples
About 113.64 A
About 90.21 A
25 A
Frequently asked questions
Plain-language answers about when to use the tool, what it does with your inputs, what to double-check, and how privacy works.
When should I use the kVA to Amps Calculator?
Use it when your task matches one of these common needs: Estimate transformer or UPS current from a kVA rating. Compare single-phase and three-phase current. It works best when you already know the values, dates, units, or settings the page asks for.
What is the kVA to Amps Calculator doing with my inputs?
In plain language: The calculator converts kVA to volt-amps, then divides by volts for single-phase or by volts x sqrt(3) for three-phase. The examples on the page are there so you can compare your inputs with a filled-out calculation before copying the answer.
What do the main kVA to Amps Calculator inputs mean?
kVA: apparent power in kilovolt-amps. Volts: the equipment voltage used in the current calculation. Phase: single-phase or three-phase formula selection.
How should I read the kVA to Amps Calculator answer?
Read the main answer first, then check the supporting lines and examples to understand how the calculator got there. If one input changes, rerun the tool and compare the new answer instead of guessing.
What should I double-check before trusting the answer?
kVA is apparent power. Transformer, UPS, breaker, and conductor sizing still need equipment instructions and qualified review. Also check that you used the right unit, date, scale, or mode because small input changes can change the result.
Why is there no power factor field?
kVA is already apparent power. Power factor is used when converting between real power in kW and apparent power in kVA, not when turning kVA directly into amps.
Is kVA the same as kW?
Not always. kW is real power and kVA is apparent power. They match only when power factor is 1, which is not true for many AC loads.
Does the site save what I enter?
No. The calculator runs in your browser tab. Your recent answers stay only on the page while you use it, and they are not sent to a server.
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