Convert IGS to DGN
How to convert IGES files to DGN format for seamless CAD data exchange using the best software tools.
Convert IGS files online
We don’t have a dedicated online converter for IGS to DGN yet, but you can convert IGS files online to these and more formats:
How to convert igs to dgn file
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Understanding IGES and DGN file formats
IGES (Initial Graphics Exchange Specification, .igs or .iges) is a widely used file format for exchanging 2D and 3D CAD data between different software applications. It is neutral and vendor-independent, making it popular for interoperability in engineering and manufacturing workflows.
DGN (Design) is a proprietary CAD file format developed by Bentley Systems, primarily used in MicroStation and other Bentley products. DGN files are common in civil engineering, architecture, and infrastructure projects, supporting both 2D and 3D design data.
Why convert IGES to DGN?
Converting IGES to DGN is often necessary when collaborating with teams or clients using Bentley MicroStation or other DGN-based platforms. This ensures seamless integration of design data and preserves important geometric and attribute information.
How to convert IGES to DGN
There are several methods to convert IGES files to DGN format. The most reliable approach is to use professional CAD software that supports both formats. Here are the recommended steps using Bentley MicroStation:
- Open MicroStation.
- Go to File → Open and select your IGES (.igs) file.
- Once the file is loaded, review the imported geometry for accuracy.
- To save as DGN, go to File → Save As and choose DGN as the output format.
Alternatively, Autodesk AutoCAD (with appropriate plugins) and ODA File Converter can also perform this conversion, but MicroStation offers the best compatibility and fidelity for DGN files.
Best software for IGES to DGN conversion
- Bentley MicroStation – The industry standard for DGN files, offering robust IGES import and export capabilities.
- Autodesk AutoCAD (with add-ons) – Can import IGES and export to DGN, but may require additional configuration.
- AnyCAD Exchange3D – A dedicated file conversion tool supporting IGES to DGN among other formats.
Tips for successful conversion
- Always verify the converted DGN file for geometry and attribute accuracy.
- Check layer, color, and line type mappings, as these may differ between IGES and DGN.
- Use the latest version of your chosen software for best compatibility.
Note: This igs to dgn conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
IGS vs DGN: format comparison
How the IGS and DGN formats compare on the properties that matter most for this conversion.
| Property | .IGS Initial Graphics Exchange Specification | .DGN MicroStation Design File |
|---|---|---|
| Dimensions | 3D | Both |
| Geometry | Both | — |
| Layers | No | Yes |
| Materials | Limited | Limited |
| Plain-text readable | No | No |
| Operating system support | Wide | Wide |
| Typical file size | Medium | Medium |
| Open standard | Partly open | Partly open |
| Developer | IGES/PDES organization (later managed by various standards bodies, including ANSI/ASME) | Bentley Systems |
