Convert FIT to FITS

The quick and simple way to convert your FIT into FITS files is to use a quality piece of software, such as reaConverter.

reaConverter is offline conversion software that supports multiple file formats, including FIT to FITS conversion, along with image editing capabilities.

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FIT to FITS
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FITFITS

How to Convert Multiple FIT Images to FITS?

1. Download and Install reaConverter

reaConverter is quick to download, install and launch. This standalone software is extremely efficient in managing a wide range of batch conversions. At the same time, it will allow you to apply image editing options during conversion.

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2. Load your FIT files

Start reaConverter and load all the .fit files you intend to convert into .fits. The software supports multiple FIT conversion and processes all files locally on your computer.

Select FITs from a folder or by drag-and-dropping them directly into the reaConverter window.

Load your FIT files into reaConverter

3. Select FITS as output format

Pick the FITS as output format and choose the destination folder where you want to save new .fits files.

Select FITS as output format

4. Start FIT to FITS conversion

Then simply press Convert button and your conversion will begin in no time!

Screenshot

Once the conversion is complete, you can find your FITS files in the destination folder you selected.

FIT to FITS Converter

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

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Do more with your images

Converting FIT images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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Image editing

User Reviews

Average User Rating:
Last updated on May 24, 2025
"reaConverter perfectly processes FIT files from our observatory telescopes into TIFFs while preserving all celestial metadata and sensor calibration data. Finally, we can batch-convert night-sky captures without losing a single photon of data fidelity!"
⭐⭐⭐⭐⭐
Prof. William S. Davis
Satisfied Customer
"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!"
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Robert Williams
Happy User
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
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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."
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Paul Baker
Happy User
"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!"
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Richard E. Miller
Satisfied Customer
"Converts files in seconds! Finally a tool that's both fast and simple to use."
⭐⭐⭐⭐⭐
Wei Chen
Happy User

FIT to FITS Conversion: FAQ

What are FIT files?

The FIT (Flexible and Interoperable Data Transfer) format is associated with some GPS devices, such as Edge, Forerunner and Oregon, created by Garmin. FIT images generally contain tracks and routes and can be opened using a limited number of image viewers. They are considered rare and need to be converted to more popular formats for increased accessibility.

What are FITS files?

The FITS (Flexible Image Transport System) format is a standard format used particularly for storing, transferring and processing scientific images from fields such as astronomy. FITS was first launched as an open standard in the early 1980s and has gone through several subsequent upgrades. FITS files contain not just images, but also data related to photometry and spatial calibration, and information about the origin of the image. Similar formats include FIT and FTS.

Can reaConverter convert FIT to FITS?

Yes! reaConverter instantly converts .fit to .fits 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.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert FIT to FITS online?

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

How can I turn FIT files into FITS on my computer?

The best way to change FITs to FITSs 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 FIT to FITS.

How can I automate FIT to FITS 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 FIT files to FITS using the command prompt?

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

What else can I do with reaConverter?

Change format settingsChange DPIConvert Gerber filesCrop imageCopy metadata (EXIF, IPTC)

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