FAQ
GSB to CAL Conversion
What are GSB files?
GSB (Grid Shift Binary) is the file extension of the NTv2 format, short for National Transformation version 2, developed in Canada by Natural Resources Canada for converting map coordinates from one geodetic datum to another. When old maps were based on one model of the Earth and new surveys use another, the same place ends up with slightly different coordinates, and a file of this type records how far each point has to move. It covers an area with a net of points and stores the shift in latitude and longitude at each of them, usually together with an estimate of the accuracy. The format later spread to other countries, including the United Kingdom, Switzerland, and Australia, and it is widely used in surveying, cadastre, and GIS.
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 GSB to CAL?
Yes! reaConverter instantly converts .gsb 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.
What is reaConverter used for?
reaConverter is a Windows converter for 800+ formats, GIS data among them. For GSB to CAL it replaces the usual detour through QGIS, ArcGIS or ogr2ogr: add the files, pick the output format, and the whole batch converts offline. Surveyors, planners and engineering teams use it to pass data between GIS, CAD and everyday document formats.
Why choose offline conversion with reaConverter?
reaConverter is a software program that is used for offline files conversion. Your proprietary documents never leave your computer – essential for architects, engineers, healthcare and government contractors handling classified projects. Meets GDPR, HIPAA, CCPA, and corporate security policies by ensuring files never cross borders or third-party systems.
Can I convert GSB to CAL online?
If you only need to convert a few GSB files to CAL format, feel free to try our free online free online GSB to CAL converter — perfect for small batches with no installation needed!
How can I turn GSB files into CAL on my computer?
The best way to change GSBs 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 GSB to CAL.
How can I automate GSB 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 GSB 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 gsb to cal converter for batch processing.
What else can I do with reaConverter?
Convert PDFAdd watermark on imageConvert DICOM imagesCrop photoConvert vector images
Related conversions
Other ways to convert GSB files, and other sources that convert to CAL.
