ZWCAD - Calculus Engineering

ZWCAD - DWG-Compatible
CAD for Better Productivity

A powerful CAD software for 2D drafting and 3D navigation with seamless
DWG compatibility, enabling smooth collaboration across industries.

Authorized ZWSOFT Reseller

"Official ZWSOFT Reseller in Cyprus and Greece with local technical support and software implementation assistance."

We are proud to be an Authorized Reseller of ZWSOFT, providing industry-leading CAD solutions tailored to your needs. As a trusted partner, we offer expert guidance, competitive pricing, and dedicated support to ensure you get the most out of your software investment. Whether you’re in architecture, engineering, or manufacturing, we are here to help you streamline your workflow with powerful, cost-effective design tools.

What's ZWCAD?

Powerful CAD Solution

Tailored to Your Needs

ZWCAD is a powerful CAD solution for complex 2D drafting and advanced 3D navigation. Widely compatible with DWG and other major formats, it enables seamless collaboration across industries. With an intuitive interface, efficiency-boosting features, and AI-powered tools, ZWCAD helps architects, engineers, and designers bring their ideas to life without limits and confidently shape the future.

Why ZWCAD?

Compatible, Efficient, and Intuitive:

Get Started with ZWCAD in No Time

Compatible

Highly compatible with DWG, DXF, DWT, and other common file formats.

Familiar Environme

Familiar interface, commands and aliases. Choose from Classic or Ribbon, Dark or Light.

Customizable

Develop or migrate third-party applications easily with APIs including LISP, VBA, ZRX, and .NET.ne-step

Migration

Easily migrate your printers, templates, fonts, command alias and hatch patterns.

Comparison with AutoCAD®

ZWCAD delivers outstanding performance in both 2D drafting and 3D navigation, helping professionals work faster and more effectively.

1.98x as fast as AutoCAD®

*This graph shows performance test results for 2D drafting operations (Open, Pan, Zoom, etc.) on 500+ DWG files (0.017M-1237.66M). Tests used Windows 10 64-bit, i7 CPU, NVIDIA GeForce RTX 3060 graphics card, and 32GB RAM. Note: Results may vary with different hardware/configurations.

Switch From AutoCAD® Without Slowing Down Your Team

Advanced 3D Navigation

3x as fast as AutoCad®

See for yourself why you should choose ZWCAD over AutoCAD®

Calculus Engineering helps teams seamlessly migrate templates, layouts, shortcuts, and CAD workflows with minimal disruption and downtime.

Power Up Your CAD with Abundant Third-Party Applications

We offer over 200 third-party applications for a wide range of industries. No matter what industry you’re in, you can always find the right solution to help you work easier, faster, and more accurately.

Our platform supports rich APIs including LISP, VBA, ZRX, and .NET, enabling developers to migrate or build applications with ease.

Top Features

RVT Import

Supports importing RVT files (versions 2015–2025), retains partial model properties, and allows model management via the layer manager.

Section View

Supports browsing 3D models by sectioning them in the form of box and plane.

Data Extraction

The data extraction process has been restructured to support batch extraction from multiple files, more objects and properties, and reusable templates, significantly improving overall efficiency.

Snap Align

Automatically rotate and align the bounds and base point of a block or selection set with the tangent lines and feature points of the target object.

Smart Merge

Supports horizontal/vertical arrangement with auto-wrap and optimal frame-matching calculation to quickly organize multiple drawings into a single orderly sheet.