Convert RP to FITS

RP to FITS conversion that keeps your files private. reaConverter runs offline on your computer with full batch processing support.

Looking to change RP files to FITS format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed, so you never wait for uploads or server queues.

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RP to FITS
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How to Convert Multiple RP Files to FITS?

1. Download and Install reaConverter

First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed.

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Install reaConverter

2. Load your RP files

Launch reaConverter and load the RP files you want to convert. Add a few files or thousands, batch processing handles them all.

Drag-and-drop RPs directly into reaConverter or use the folder browser to load entire directories.

Load your RP files into reaConverter

3. Select FITS as output format

Set FITS as output format and select where to save your converted files. Customize quality settings if needed.

Select FITS as output format

4. Start RP to FITS conversion

Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.

Start Conversion

Your converted FITS files will appear in the destination folder as soon as processing completes.

RP to FITS Converter

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

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Do more with your files

Converting RP 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:4.8
Last updated on August 08, 2026
"reaConverter makes FITS conversion incredibly easy. We batch convert astronomical images to standard formats for presentations and analysis, all automated through the command-line. It’s fast, reliable, and handles large datasets without issues."
Laura N.
Laura N.
Astrophysics Research Assistant
"Essential for our astroimaging pipeline! reaConverter perfectly handles FITS files from our research telescope, preserving all WCS coordinates and photometric data during batch conversion to TIFF. Now we process 100+ deep-sky exposures nightly without losing critical metadata for our exoplanet studies!"
Joseph Wilson
Joseph Wilson
Satisfied Customer
"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Lin Zhang
Happy User
"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."
Ava Thomas
Ava Thomas
Happy User
"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

RP to FITS Conversion: FAQ

What are RP files?

RP is an image format associated with Rainbow Painter, an image processor first released in the early 1990s. The program included a variety of features for image editing and capturing screenshots, and had several upgraded releases in the following years, designed for both Mac OS and Windows platforms. Rainbow Painter has now been discontinued for a few years, so the RP format is considered obsolete and uncommon.

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 RP to FITS?

Yes! reaConverter instantly converts .rp 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.

Can I convert RP to FITS online?

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

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

The best way to change RPs 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 RP to FITS.

How can I automate RP 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 RP 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 rp to fits converter for batch processing.

What else can I do with reaConverter?

Convert CAD formatsSet picture bit depthChange format settingsSet new DPIConvert DICOM images

RP and FITS: related conversions

Other ways to convert RP files, and other sources that convert to FITS.

RP to JPGRP to PNGRP to PDF82I to FITS83I to FITS85I to FITS
All RP conversionsAll FITS conversions

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Batch conversion, editing, and processing across 700+ formats, from RAW and HEIC to DICOM, DWG, and PDF. Everything runs locally, with no cloud and no upload limits.
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