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Convert bmp to stl

Free online BMP to STL converter

How to convert BMP images to STL 3D models for printing using the best software and online tools.

Convert BMP to STL online - free

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Model type

A relief raises the bright parts of the picture above a base plate: terrain, embossed logos, signs. A lithophane is a thin plate that is thicker where the picture is dark, so the photo appears when light shines through it. Print it in white filament.

Model size (longest side)

Height

Relief: how far the brightest parts rise above the base plate. Lithophane: the thickest point of the plate (the thinnest is 0.8 mm). Auto uses 5 mm for a relief and 3 mm for a lithophane.

Mesh detail

More detail keeps finer features of the picture, but the file gets bigger and slower to slice.

Swaps high and low, for example to raise a dark logo on a white background.

Your file is processed instantly and deleted as soon as you download it.

How it works

  1. 1/3

    Upload your .bmp file

    Click to browse to select your file you want to convert or simply drag & drop your file into selected area.

  2. 2/3

    Perform .bmp to .stl conversion

    After successful file upload, click to convert when you are ready.

  3. 3/3

    Download converted .stl file

    Conversion result is ready to download.

How to convert bmp to stl file

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Understanding bmp and stl file formats

BMP (Bitmap) is a raster graphics image file format used to store digital images, especially on Windows platforms. It contains pixel-based data and is commonly used for storing 2D images without compression.

STL (Stereolithography) is a widely used file format for 3D models, especially in 3D printing. It represents the surface geometry of a 3D object using a mesh of triangles, but does not include color or texture information.

Why convert bmp to stl?

Converting a BMP image to STL format is useful when you want to turn a 2D image into a 3D model, such as for 3D printing or CNC machining. This process is often called image to 3D relief conversion or heightmap to mesh conversion.

How to convert bmp to stl

The conversion process involves interpreting the grayscale or color values in the BMP image as height data, which is then used to generate a 3D mesh saved in STL format. Here are the general steps:

  1. Prepare your BMP image, ideally in grayscale for best results.
  2. Use a specialized software to import the BMP and generate a 3D relief or heightmap.
  3. Export the generated 3D model as an STL file.

Best software for bmp to stl conversion

  • Image to Lithophane (https://3dp.rocks/lithophane/): A free online tool that converts BMP images to 3D lithophane STL files. Simply upload your BMP, adjust settings, and download the STL.
  • Microsoft 3D Builder: Import your BMP image, use the Insert → Add → Image function to create a 3D object from the image, then Save As STL.
  • Blender: Import the BMP as a texture, use the Displace modifier on a mesh, and then File → Export → STL.
  • Fusion 360: Import the BMP as a canvas, use the Emboss or Heightmap add-ins, then File → Export → STL.

Tips for best results

  • Use high-contrast, noise-free BMP images for clearer 3D reliefs.
  • Resize or crop your BMP to the desired aspect ratio before conversion.
  • Preview the 3D model before exporting to STL to ensure the relief looks as expected.

Conclusion

Converting BMP images to STL files enables you to create 3D printable models from 2D artwork. Tools like Image to Lithophane and Blender make the process accessible for both beginners and advanced users.

Note: This bmp to stl conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.

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BMP vs STL: format comparison

How the BMP and STL formats compare on the properties that matter most for this conversion.

Comparison of the BMP and STL file formats
Property .BMP Bitmap Image File .STL Stereolithography
Open standard Partly open Partly open
Compression Uncompressed Uncompressed
Typical file size Very large Small
Opens in a web browser Yes, natively No
Further editing Easy Not directly editable
Metadata support Basic None
Plain-text readable No Yes
Best used for Editing and post-production Embedding in applications
Introduced 1990 1987
Developer Microsoft 3D Systems
MIME type image/bmp model/stl
Open BMP file Open STL file

Suggested software and links: bmp to stl converters

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ViaCAD Pro

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Frequently asked questions

Is the BMP to STL converter free?

Yes, converting BMP to STL on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.

How large can my BMP file be?

You can upload BMP files up to 50 MB and convert up to 20 files at once in a single batch.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert BMP to STL?

No. The BMP to STL conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid BMP file for this BMP to STL conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

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