Free Online 3DM to OBJ Converter

Here is our free to use 3DM to OBJ 3D model converter tool that will take your 3DM file and convert it to the OBJ format ready for loading into your favourite 3D modeling package. Our 3D model converter supports batch processing of your files and can convert up to 20 3DM files at one time.

Select File(s)

Drag and drop your files here to upload or click the button above.
A maximum of 20 files can be converted at once.

Please note: Your 3DM file file, when uploaded to our server, will be deleted 15 minutes after upload. Please download your converted 3DM file file before this time.

The 3DM to OBJ model conversion tool will analyse your 3DM file and convert its 3D mesh data including vertices, surfaces and where applicable vector normals and texture coordinates to the OBJ format whilst maintaining the structural accuracy of your original 3DM 3D model file.

File information for 3DM and OBJ

Full Name	Rhinoceros 3D
Extension	3DM
Type	3D Model
Mime Type	x-world/x-3dmf
Format	Binary

The 3DM file format is an advanced 3D graphics format based around the NURBS method of representing 3D data. 3DM files are the native format used by the Rhinoceros 3D CAD application.

The advantages of using 3DM files to store 3D data are primarily down to the mathematically superior NURBS method compared to other 3D formats that store 3D objects as a series of triangles, which is how formats such as STL store 3D data.

3DM Converter Capabilities

As the 3DM format currently does not support the use of material colors when used by tool, your converted model will contain only the mesh geometry, material colors will not be transferred to your converted file.

Full Name	Wavefront
Extension	OBJ
Type	3D Model
Mime Type	text/plain
Format	Text

An OBJ file is a text-based file format used for the storage of 3D model data. The format was developed in the 1980s by Wavefront Technologies as a means to store the geometric mesh data associated with a 3D model. It has garnered widespread support in the following years, and you will find options to load from and save to the OBJ format in most modern 3D modeling applications.

As OBJ files are essentially text files, they can grow quite large when working with large and detailed 3D models.

Mesh Geometry

Within a 3D OBJ file are lists of vertices, mesh faces, face normals, texture coordinates, and more. The vertices, normals, and texture coordinates are stored in a continuous list and are indexed referenced within a separate list of mesh faces, ensuring optimal use of space within the file. A mesh face may contain three or more points, each of which can use a unique vector normal and texture coordinate.

OBJ Converter Capabilities

As the OBJ format currently does not support the use of material colors in 3D models when created using our tool, your converted model will contain only the mesh geometry, material colors will not be transferred to your converted OBJ file.

How to Convert your 3DM to OBJ?

Here are two steps to convert your 3DM to OBJ using our free 3DM converter tool.

Upload your 3DM file

Click the "Select File" button, and then select the 3DM file to upload. The maximum file size is 100MB.

Download your OBJ

Click the download link to receive your OBJ file.

Frequently Asked Questions

How do I convert my 3DM to OBJ?

First, click the "Select File" button and choose your 3DM file. We will upload and convert your 3DM file. Once the conversion from 3DM to OBJ completes, use the provided link to download your OBJ file.

How long does it take to convert my 3DM file to OBJ?

We aim to process all 3DM to OBJ file conversions as soon as possible; this should take around 5 seconds; however, this may be longer for larger files.

Is the 3DM format suitable for 3D printing?

No. Most 3D printing slicer software will not support the 3DM format. It is recommended to convert your 3DM file to the STL format if you wish to 3D print it.