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SG-GRD-Z Converter

Survey, cadastral and client data should not go through an upload form. reaConverter converts SG-GRD-Z files offline, with no size limit.

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SG-GRD-Z Files
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SG-GRD-ZConverter
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How to Convert .sg-grd-z Files in Bulk

1. Install reaConverter

Download reliable SG-GRD-Z conversion software to convert multiple .sg-grd-z files and folders in one go.
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Install reaConverter

2. Select SG-GRD-Z Files

Select SG-GRD-Zs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load SG-GRD-Z files

3. Start Conversion

Click Convert to start the bulk conversion of all selected SG-GRD-Z files. The process will begin right away.
reaConverter - Start SG-GRD-Z conversion

Step by step

See It in Action

For quick and effortless SG-GRD-Z file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.

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GIS Toolkit

Do more with your GIS data

Need SG-GRD-Z data as something anyone can open? reaConverter renders imagery and elevation grids into standard images and documents without QGIS or ArcGIS, and works through whole folders in one pass.

  • Render imagery, elevation grids and scanned charts to TIFF, PNG, JPG or PDF
  • Resize, crop and set DPI on the output in the same run
  • Bring tiles, scenes and grids from many sources into one consistent format
  • Convert incoming survey and field data automatically with Watch Folders
  • Script GIS conversions from the command line for pipelines and scheduled jobs
  • Keep cadastral, utility and client data on your PC: nothing is uploaded
GIS data conversion

User reviews

From those who tried it

Average User Rating:
Last updated on July 29, 2026
I use the online converter — it’s quick and hassle-free!
Jian Wong
Jian Wong
Happy Online User
I run a small design agency, and reaConverter has saved me countless hours. The batch processing is lightning-fast, and the ability to convert hundreds of files into different formats at once is a game-changer. Highly recommend!
Mark T.
Mark T.
Satisfied Customer
Enable shell integration for lightning-fast file conversions directly from Windows Explorer.
R. Lewis
R. Lewis
Happy User
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
So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!
Kenneth D. Carter
Kenneth D. Carter
Satisfied Customer
Tried a few image tools before, but this one is by far the easiest. Drag, drop, convert — done in seconds. It saved me a ton of time when organizing my image folders.
Lisa K.
Lisa K.
Happy User

Questions & Answers

SG-GRD-Z files: Frequently Asked Questions

What are SG-GRD-Z files?

SG-GRD-Z is a ZIP archive that holds a complete SAGA grid in one file. Inside the archive are the .sgrd text header, which describes the number of columns and rows, the position, the cell size, the type of numbers, and the value for missing data, the .sdat file with the binary values, and the .prj file with the projection. Because the standard ZIP method is used, the archive can be examined with ordinary archive tools, and the files inside keep the structure of a normal SAGA grid. Compressing the data is especially effective for grids with large uniform areas, such as the flat parts of a terrain model, or for masks and classified maps, where the same values repeat many times. Packing the files together also prevents the common mistake of losing the header or the projection when a grid is moved or sent to someone. To convert an SG-GRD-Z grid to graphics, a program reads the archive, takes the header and the values, restores the real numbers using the stated type and scale, and marks missing cells as transparent. The grid is then painted with a grayscale or color ramp, or turned into a shaded relief picture, and saved as PNG, JPEG, TIFF, or GeoTIFF with its coordinates. Supported by SAGA GIS.

Can reaConverter open SG-GRD-Z files?

reaConverter fully supports the SG-GRD-Z file format – open, edit, and export SG-GRD-Z files to any other popular file format with ease.

Do I need QGIS or ArcGIS to convert SG-GRD-Z files?

No. reaConverter reads SG-GRD-Z files on its own, so the conversion needs no GIS installation and no licence. It handles whole folders at once, which suits survey archives, tile sets and data deliveries that have to reach people working in other software.

How do I change SG-GRD-Z to another format?

reaConverter is a user-friendly tool for converting SG-GRD-Z files. Once installed on your computer, it allows you to convert all your .sg-grd-z files at once with just a few clicks. You can even convert SG-GRD-Z files directly from Windows Explorer using the right-click menu — fast and convenient.

Why choose offline conversion with reaConverter?

Keep your sensitive data 100% private with offline processing that never exposes files to cloud risks. Our software meets strict compliance standards (GDPR, HIPAA, CCPA) while handling confidential documents for legal, healthcare and financial sectors.

Can I convert SG-GRD-Z online?

If you only want to convert a few SG-GRD-Z files, you are welcome to try our free online SG-GRD-Z converter.

How can I turn SG-GRD-Z files on my computer to another format?

The best way to convert SG-GRD-Z files on your PC is to get 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 SG-GRD-Z.

How can I automate SG-GRD-Z files conversion?

reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.

Can I convert SG-GRD-Z files using scripts or the command-line interface?

reaConverter provides full access to all its features from the Windows command-line shell, including the command-line sg-grd-z converter.

What else can I do with reaConverter?

Convert RAW formatsConvert CAD formatsSet file dateConvert vector imagesSet new DPI

What formats can I convert a SG-GRD-Z file to?
sg-grd-z → aisg-grd-z → apngsg-grd-z → avifsg-grd-z → bmpsg-grd-z → bpgsg-grd-z → calsg-grd-z → cg4sg-grd-z → cgmsg-grd-z → cinsg-grd-z → citsg-grd-z → dcmsg-grd-z → dcxsg-grd-z → ddssg-grd-z → dgnsg-grd-z → dissg-grd-z → drwsg-grd-z → dwfsg-grd-z → dwgsg-grd-z → dxfsg-grd-z → emfsg-grd-z → episg-grd-z → epssg-grd-z → faxsg-grd-z → fitssg-grd-z → flifsg-grd-z → gbrsg-grd-z → gifsg-grd-z → glbsg-grd-z → gltfsg-grd-z → hpgsg-grd-z → hrusg-grd-z → icosg-grd-z → iffsg-grd-z → igessg-grd-z → igssg-grd-z → jp2sg-grd-z → jpegsg-grd-z → jpgsg-grd-z → jxlsg-grd-z → jxrsg-grd-z → ktx2sg-grd-z → mtvsg-grd-z → pclsg-grd-z → pctsg-grd-z → pcxsg-grd-z → pdfsg-grd-z → pgmsg-grd-z → picsg-grd-z → pltsg-grd-z → pngsg-grd-z → ppmsg-grd-z → prcsg-grd-z → pssg-grd-z → psdsg-grd-z → qoisg-grd-z → qrtsg-grd-z → radsg-grd-z → rlasg-grd-z → sgisg-grd-z → shpsg-grd-z → stepsg-grd-z → stlsg-grd-z → stpsg-grd-z → svgsg-grd-z → svgzsg-grd-z → tgasg-grd-z → tifsg-grd-z → tiffsg-grd-z → u3dsg-grd-z → webpsg-grd-z → webpllsg-grd-z → wmfsg-grd-z → wmzsg-grd-z → wpgsg-grd-z → wrlsg-grd-z → x3dsg-grd-z → xbmsg-grd-z → xpm

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Beyond SG-GRD-Z conversion

Convert .sg-grd-z files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.

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