Calcipedia

Amps to Kilovolt-Amps Calculator

Convert current into apparent power in kilovolt-amps for single-phase or three-phase AC using the entered supply voltage, with supporting volt-amps and the phase-specific working equation.

Last updated

Also in Unit Converters

Amp-Hours to Kilowatt-Hours Calculator Amp-Hours to Watt-Hours Calculator Amps to Kilowatts Calculator Amps to Volts Calculator Amps to Watts Calculator Joules to Volts Calculator Joules to Watts Calculator Kilovolt-Amps to Amps Calculator Kilovolt-Amps to Kilowatts Calculator Kilovolt-Amps to Volt-Amps Calculator Kilovolt-Amps to Watts Calculator Kilowatt-Hours to Amp-Hours Calculator Kilowatt-Hours to Kilowatts Calculator Kilowatt-Hours to Watts Calculator Kilowatts to Amps Calculator Kilowatts to Kilovolt-Amps Calculator Kilowatts to Kilowatt-Hours Calculator Kilowatts to Volt-Amps Calculator Milliamp-Hours to Watt-Hours Calculator Volt-Amps to Amps Calculator Volt-Amps to Kilovolt-Amps Calculator Volt-Amps to Kilowatts Calculator Volts to Amps Calculator Volts to Joules Calculator Volts to Watts Calculator Watt-Hours to Amp-Hours Calculator Watt-Hours to Milliamp-Hours Calculator Watts to Amps Calculator Watts to Joules Calculator Watts to Kilovolt-Amps Calculator Watts to Kilowatt-Hours Calculator Watts to Volts Calculator
← All Unit Converters calculators

Conversions

Amps to kilovolt-amps calculator: convert current into apparent power

An amps to kilovolt-amps calculator converts current into apparent power for single-phase or balanced three-phase AC systems when you know the supply voltage. It is useful for turning current estimates into kVA demand, checking how a line current maps to transformer or generator ratings, and comparing single-phase and three-phase apparent-power requirements on the same basis.

What this amps to kilovolt-amps calculator solves

This page converts current in amps into apparent power using the selected AC system and the entered voltage. Single-phase mode multiplies amps by voltage directly, while balanced three-phase mode applies the square-root-of-three factor tied to line-voltage apparent-power relationships.

That makes the calculator a good fit when you know the current requirement but need the answer in apparent power so it can be compared against equipment ratings that are published in kVA.

The apparent-power formulas behind the result

In single-phase AC, apparent power equals current multiplied by voltage. In balanced three-phase AC, the calculator multiplies current by line voltage and the square-root-of-three factor. The result panel also shows the supporting volt-amp figure so the same apparent power stays visible at both scales.

The exact working equation is displayed beside the result so you can verify the arithmetic and confirm that the chosen phase mode matches the supply you are checking.

kVA = (A x V) / 1,000

Use for single-phase AC when current and voltage are known.

kVA = (√3 x A x V) / 1,000

Use for balanced three-phase AC when line current and line voltage are known.

VA = kVA x 1,000

Shows the same apparent power at the volt-amp scale.

How to interpret the kVA result

The kVA result is the apparent power implied by the entered current, voltage, and phase assumptions. That is useful for early equipment comparisons, feeder planning, and checking whether a current estimate lines up with the nameplate-style apparent-power ratings used elsewhere in the system.

Because the result stays in kVA, the page keeps the promised output unit visible rather than auto-scaling it into a different apparent-power label. The supporting VA value remains there for traceability.

What this simplified conversion does not replace

This calculator does not model real power, power factor, harmonics, imbalance, conductor sizing, or protection selection. It is a clean apparent-power conversion based on the selected phase relationship.

Use it as an educational and planning tool. For installation or procurement decisions, verify the result against the actual system design, equipment documentation, and the applicable electrical standard.

Frequently asked questions

Why does three-phase mode use the square-root-of-three factor?

Because balanced three-phase apparent power is based on line current and line voltage, which introduces the √3 factor when converting between current and apparent power.

 Why do I need voltage if I already know the current?

Because apparent power depends on both current and voltage. The same amperage produces different kVA values at different supply voltages.

 Can I use this to size wiring or breakers directly?

No. It converts current into apparent power only. Final conductor and protection sizing still require separate code-based and equipment-specific checks.

Related

More from nearby categories

These related calculators come from the same leaf category, nearby sibling categories, or the same top-level topic.

Kilovolt-Amps to Amps Calculator

Convert apparent power in kilovolt-amps into current for single-phase or three-phase AC using the entered supply voltage, with supporting volt-amps and the phase-specific working equation.

Open calculator

Volt-Amps to Amps Calculator

Convert apparent power in volt-amps into current for single-phase or three-phase AC using the entered supply voltage, with supporting kVA and the phase-specific working equation.

Open calculator

Watts to Kilovolt-Amps Calculator

Convert real watts into apparent power in kilovolt-amps using the entered power factor, with supporting volt-amps and the exact kVA = W / (PF × 1,000) working equation.

Open calculator

Amps to Kilowatts Calculator

Convert current to kilowatts for DC, single-phase AC, or three-phase AC using entered voltage and power factor where needed.

Open calculator

Privacy choices

If you allow analytics, we may use Google Analytics and Microsoft Clarity to better understand how the site is used. Analytics remain off unless you accept.