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Convert RGF to CAL

Convert RGF images to CAL format, edit and optimize images online and free.

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LEGO Mindstorms EV3 Robot Graphics File (.rgf)

The RGF (LEGO Mindstorms EV3 Robot Graphics File) is a proprietary raster image format used by the LEGO Mindstorms EV3 software to create and edit images for programming LEGO robots. These files, which include text boxes, shapes, and drawings, are designed to be displayed on the EV3 robot's screen or within the programming environment. The format was developed by LEGO to facilitate the integration of visual elements into robot design and programming tasks.

RGF Converter

Continuous Acquisition and Life-cycle Support Type 1 Image (.cal)

The CAL file extension, known as CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image, is a 1-bit black-and-white raster image format developed by the U.S. Department of Defense in the mid-1980s to standardize graphics data interchange for military documentation. It is primarily used for storing and sharing monochrome images while retaining orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images.

CAL Converter

How to convert RGF to CAL?

  1. Upload RGF File

    Drag & drop any RGF file from your device or click the Choose File button to proceed.

  2. Select RGF Tools

    Choose any RGF to CAL converter tools for a customized conversion, and click Convert.

  3. Download Your CAL

    Give it a moment for the CAL conversion to complete, then download your file afterward.

Convert RGF to CAL

Frequently Asked Questions

How to change RGF format to CAL?

To change RGF format to CAL, upload your RGF file to proceed to the preview page. Use any available tools if you want to edit and manipulate your RGF file. Click on the convert button and wait for the convert to complete. Download the converted CAL file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert RGF to CAL on macOS

Follow steps below if you have installed Vertopal CLI on your macOS system.

  1. Open macOS Terminal.
  2. Either cd to RGF file location or include path to your input file.
  3. Paste and execute the command below, substituting in your RGF_INPUT_FILE name or path. $ vertopal convert RGF_INPUT_FILE --to cal

Convert RGF to CAL on Windows

Follow steps below if you have installed Vertopal CLI on your Windows system.

  1. Open Command Prompt or Windows PowerShell.
  2. Either cd to RGF file location or include path to your input file.
  3. Paste and execute the command below, substituting in your RGF_INPUT_FILE name or path. $ vertopal convert RGF_INPUT_FILE --to cal

Convert RGF to CAL on Linux

Follow steps below if you have installed Vertopal CLI on your Linux system.

  1. Open Linux Terminal.
  2. Either cd to RGF file location or include path to your input file.
  3. Paste and execute the command below, substituting in your RGF_INPUT_FILE name or path. $ vertopal convert RGF_INPUT_FILE --to cal

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