Advanced Industrial Calculators

Optimize your engineering processes with IEC-compliant calculators for automation, energy, and electrical systems.

Explore Calculators

Industrial Automation

Energy Management System

HT & LT Electrical Systems

Numerical Relay Programming & Protection

Solar Power Systems

HT/LT Motors, VFDs, and Soft Starters

General Electrical & Miscellaneous

About Industrial Calculator

Our Mission

Industrial Calculator provides free, precise engineering tools to professionals and students in industrial automation, energy management, and electrical systems. Our calculators are built with IEC standards compliance to ensure accuracy in your critical engineering calculations.

Why Choose Us?

  • Compliant with international standards (IEC, IEEE)
  • Practical tools developed by industry experts
  • No registration required - completely free to use
  • Mobile-friendly interface for on-site calculations

Our Expertise

Our team consists of certified automation engineers, electrical designers, and energy specialists with decades of combined experience in industrial applications. We've designed these calculators to solve real-world problems we've encountered in the field.

Have suggestions or feedback?

We’d love to hear from you! Contact us to help us improve your experience.