Power & phase

kVA to Amps Calculator

Current equals apparent power in volt-amperes divided by voltage. Balanced three-phase current also divides by the square root of three.

Convert apparent power in kVA to current for single-phase or balanced three-phase systems.

Calculated result

Calculated current

Calculating…

Calculated locally in your browser

Planning math only. Verify equipment specifications and installation requirements separately.

kVA to Amps Calculator relationship diagram. The illustration supports the text result; it is not a wiring or installation drawing.

What this calculator returns

Power factor is not required because kVA already represents apparent power.

Formula and variables

The calculation runs entirely in your browser. Static formulas, definitions, examples, and tables remain readable without JavaScript.

Formula

I = 1000 × kVA / V (1φ); I = 1000 × kVA / (√3 × VLL) (3φ).

P: Real power, in watts or kilowatts.
S: Apparent power, in volt-amperes or kilovolt-amperes.
V: RMS voltage; line-to-line voltage in three-phase modes.
I: Line or circuit current, in amperes.
PF: Power factor, expressed as a ratio from greater than zero through one.
Q: Reactive power, in volt-amperes reactive.

kVA is apparent power and VLL is line-to-line voltage for three-phase.

Worked example

Worked example inputs and result
Input	Value
Phase	Single-phase AC
Apparent power	10 kVA
Voltage	240 V
Result	10 kVA at 240 V single-phase is 41.67 A; at 480 V three-phase it is about 12.03 A.

10 kVA at 240 V single-phase is 41.67 A; at 480 V three-phase it is about 12.03 A.

Reference table

Common-voltage conversion examples derived from P = V × I at power factor 1. Three-phase examples require the separate √3 relationship.
Voltage	Amps at 1 kW	Amps at 5 kW	Watts at 10 A
120 V	8.33 A	41.67 A	1,200 W
208 V	4.81 A	24.04 A	2,080 W
240 V	4.17 A	20.83 A	2,400 W
480 V	2.08 A	10.42 A	4,800 W

Frequently asked questions

Is this kVA-to-amps result code compliant?

No. PowerTotals performs transparent electrical math and planning estimates. Installation decisions must be checked against equipment documentation, the adopted code, and the authority having jurisdiction.

Are my inputs uploaded?

No. Calculations run locally in your browser, and analytics never receives raw electrical values.

Assumptions and limitations

Balanced three-phase system assumed.
No protection or conductor sizing.

Method and sources

Read the calculation methodology, review the technical sources, or browse the reference table index. Last reviewed 2026-08-13.