FREE FOR ALL ENGINEERS

Hassab — Engineering Calculations, Done Right

The complete electrical engineering toolkit for Gulf & Saudi engineers. 14 professional calculators, AI assistant, and full standards compliance, all in one app.

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Download forWindows

Coming SoonApp Store

Coming SoonGoogle Play

Built on International Standards

Every calculator follows recognized codes used across the Gulf region

IEC 60364

NEC

IEEE 80

BS 7671

Saudi Building Code

IEC 61724

IEEE 1584

IEC 60909

IEC 60364

NEC

IEEE 80

BS 7671

Saudi Building Code

IEC 61724

IEEE 1584

IEC 60909

Powerful Calculators

Professional-grade tools for every electrical engineering need

Electrical

Load schedules, cable sizing, breakers, transformers, earthing, and more. All SEC/IEC compliant.

9 Tools

Solar

PV sizing, inverter selection, battery storage, and energy yield estimation for KSA climate.

5 Tools

Lighting

Coming Soon

Lux calculations, fixture layout, and SBC 401 compliance. Coming soon.

3 Tools

See All Features

AI-Powered Assistant

Get instant help with your engineering questions

Hassab's built-in AI assistant understands electrical engineering context. Ask about standards, get help interpreting results, or troubleshoot your designs, all within the app.

What's the minimum cable size for a 100A load at 50m?

Based on IEC 60364, for a 100A load at 50m distance with copper conductors, you need a minimum of 35mm² cable to keep voltage drop under 3%.

How It Works

Three simple steps to professional results

Create a Project

Set up your project with location, standards, and parameters

Run Calculations

Use any of 14 calculators with real-time validation and step-by-step results

Export Reports

Generate professional PDF and Excel reports ready for submission

Ready to streamline your calculations?

Download Hassab free for Windows. No registration required.

Download for Windows Try the Demo