Convert BMG to CAL

Need to convert hundreds of BMG files to CAL? reaConverter does it in one click. No file limits, no watermarks, no internet required.

reaConverter transforms BMG files to CAL quickly and reliably. Drag in folders, set your options, click Convert, done. No cloud accounts, no file uploads, no complicated setup. Just install and start converting.

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BMG to CAL
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How to Convert Multiple BMG Files to CAL?

1. Download and Install reaConverter

Download reaConverter and install it in seconds. The setup is straightforward — no complex configuration, no extra software required.

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Install reaConverter

2. Load your BMG files

Add your BMG files to reaConverter. Whether it's a handful or an entire archive, the batch engine processes them efficiently.

Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

Load your BMG files into reaConverter

3. Select CAL as output format

Pick CAL as the output format. Set the destination folder and optionally configure resolution, quality, or file naming.

Select CAL as output format

4. Start BMG to CAL conversion

Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

Start Conversion

When the batch finishes, your CAL files are ready in the destination folder you chose earlier.

BMG to CAL Converter

reaConverter offers the fastest, simplest solution for converting your BMG files into CAL in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting BMG files for use in a workflow? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 22, 2026
"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"
Richard E. Miller
Richard E. Miller
Satisfied Customer
"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
Wei Chen
Happy User
"I'd been searching for reliable conversion software forever — reaConverter has everything I need! After installing and watching the tutorial, I had my files converted to the perfect format in minutes. Flawless experience!"
Sanjay Mehta
Sanjay Mehta
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"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
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"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
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"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
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BMG to CAL Conversion: FAQ

What are BMG files?

BMG files are associated with Bert's Dinosaurs Coloring, a program designed for MS-DOS in the 1980s. The program provides an easy-to-use platform where children can pick a particular image and fill it with color. BMG files are currently considered rare and obsolete.

What are CAL files?

A CAL image file represents a monochrome bitmap image that uses the CALS raster image standard for storing graphics data. This standard was created in the 1980s by the US Department of Defence as a compressed interchangeable image format. CAL and CALS are extensions used for similar purposes.

Can reaConverter convert BMG to CAL?

Yes! reaConverter instantly converts .bmg to .cal with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert BMG to CAL online?

If you only need to convert a few BMG files to CAL format, feel free to try our free online free online BMG to CAL converter — perfect for small batches with no installation needed!

How can I turn BMG files into CAL on my computer?

The best way to change BMGs to CALs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from BMG to CAL.

How can I automate BMG to CAL files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert BMG files to CAL using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line bmg to cal converter for batch processing.

What else can I do with reaConverter?

Convert Gerber filesCrop imagesChange format settingsChange picture DPIConvert GIS files

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