Convert BIG to RAD

Stop converting BIG files one by one. reaConverter processes entire folders to RAD automatically — just drag, drop, and click Convert.

Got a folder full of BIG files? reaConverter batch converts them to RAD in minutes, not hours. Local processing means instant results, even with thousands of files.

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How to Convert Multiple BIG Files to RAD?

1. Download and Install reaConverter

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

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Install reaConverter

2. Load your BIG files

Start reaConverter and add your .big files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your BIG files into reaConverter

3. Select RAD as output format

Select RAD from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select RAD as output format

4. Start BIG to RAD conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your RAD output.

BIG to RAD Converter

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

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Do more with your files

Converting BIG 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
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User
"This converter delivers exceptionally quick format conversions with reliable results every time."
Brian White
Brian White
Happy User
"Security was our top concern when evaluating file conversion tools. reaConverter’s offline mode and role-based access controls let us lock it down for sensitive environments. No unexpected network calls or bloat — just clean, fast conversions. Even passed our pen-testing scans without a hitch."
Marcus White
Marcus White
Healthcare IT
"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
Happy User
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"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
Happy User

BIG to RAD Conversion: FAQ

What are BIG files?

The BIG image file extension is associated with Michelin maps. These maps have a long history in France, with the first printed version launched in 1905. They are mainly addressed to automobile drivers and in recent decades, the Michelin maps have become available in digital format too.

What are RAD files?

The RAD format is supported by a ray tracing application called Radiance, which contains several tools that support lighting simulation and measuring light levels. RAD files are often used in architectural project to design and evaluate lighting systems. Apart from lighting features, they can also save objects and materials, and they serve as input for OCT files that facilitate the scene rendering.

Can reaConverter convert BIG to RAD?

Yes! reaConverter instantly converts .big to .rad 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 BIG to RAD online?

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

How can I turn BIG files into RAD on my computer?

The best way to change BIGs to RADs 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 BIG to RAD.

How can I automate BIG to RAD 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 BIG files to RAD using the command prompt?

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

What else can I do with reaConverter?

Convert vector filesConvert picture color spaceChange format settingsChange image DPIConvert CAD formats

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