Instantly calculate 3-phase active (kW), reactive (kVAR), and apparent (kVA) power with our advanced 2025 tool. Supports balanced/unbalanced systems, visual charts, dark mode, and CSV export. Perfect for engineers, students, and technicians.
Ultimate 3-Phase Calculator
Multi-directional power calculations with advanced options
Input Parameters
Results
Controls & Options
Understanding Power
Q (Reactive Power) — Power that is stored and returned by reactive components (like motors and transformers). It doesn’t do useful work but is necessary for the system to operate. Measured in Volt-Amps Reactive (VAR).
S (Apparent Power) — The vector sum of Active and Reactive power. It’s the total power the utility must supply. Measured in Volt-Amps (VA). The relationship is: S² = P² + Q².
How to Master the 3-Phase Power Calculator
Introduction
In the world of electrical engineering, whether you’re a professional technician on-site in Pakistan, a student working on a project, or an engineer designing a complex system, accurate 3-phase power calculations are fundamental. Calculating Active (P), Reactive (Q), and Apparent (S) power can be repetitive and prone to error, especially when dealing with different system types and units.
To streamline this critical task, we’ve developed the 3-Phase Power Calculator—a free, intuitive, and powerful web tool designed for precision and ease of use. This isn’t just a simple calculator; it’s a comprehensive utility packed with advanced features to enhance your workflow, provide clear insights, and adapt to your preferences.
From handling both balanced and unbalanced systems to visualizing the power triangle with a dynamic chart and exporting your results, this tool is built to be your go-to resource. In this guide, we’ll walk you through every feature to ensure you can leverage its full potential for your projects, studies, or daily tasks. Let’s dive in and see how you can master your electrical calculations in seconds.