Convert AC to CAL

AC to CAL with consistent quality. reaConverter handles 3D files in batch — perfect for collaboration across different software.

Tired of converting AC files one at a time? reaConverter processes entire folders to CAL automatically. Handles large batches reliably without crashes or timeouts. No CAD software required — handles 3D models independently.

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ACCAL

How to Convert Multiple AC Files to CAL?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting AC files in under two minutes.

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Install reaConverter

2. Load your AC files

Add AC files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.

You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

Load your AC files into reaConverter

3. Select CAL as output format

Select CAL from the output format list and set your destination folder. You can also adjust quality and compression settings.

Select CAL as output format

4. Start AC to CAL conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

Start Conversion

When finished, your new .cal files will be waiting in the destination folder.

AC to CAL Converter

reaConverter offers the fastest, simplest solution for converting your AC 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 AC 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 15, 2026
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User
"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
Walter Morgan
Walter Morgan
Satisfied Customer
"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."
Roger Cook
Roger Cook
Happy User
"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."
Jamal Bailey
Jamal Bailey
Satisfied Customer
"Our volunteer team uses reaConverter to prepare images for fundraising campaigns. The learning curve was minimal, and the results are professional-grade. The customer support team even helped us customize a workflow — fantastic service!"
Jason P. Bailey
Jason P. Bailey
Non-Profit Coordinator

AC to CAL Conversion: FAQ

What are AC files?

AC is a vector file that contains geometrical data related to a 3D model created with AC3D, including texture, polygon material (known as "surface material"), object data etc. AC3D is a program initially developed by Inivis for Amiga computers in the early 1990s, delivering applications for 3D modeling and animations. The software was mostly used for game programming and continues to be available in an updated version.

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 AC to CAL?

Yes! reaConverter instantly converts .ac 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 AC to CAL online?

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

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

The best way to change ACs 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 AC to CAL.

How can I automate AC 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 AC 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 ac to cal converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesChange file creation dateCopy IPTC dataConvert Gerber imagesCrop photos

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