Power Triangle Solver (kW / kVA / kVAR / PF)
Solve the full AC power triangle from any two of real power, apparent power, reactive power, power factor, or phase angle, with a phasor diagram.
Formula and source
kVA^2 = kW^2 + kVAR^2; PF = kW / kVA; theta = arccos(PF). Any two of kW / kVA / kVAR / PF / angle fix the triangle, provided at least one is a magnitude.
IEEE 1459 (Definitions for the Measurement of Electric Power Quantities). Sinusoidal-case algebra.
Audience
This tile is built for electricians and the adjacent professions in the Electrical group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.
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Posture
Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.