FAQ
BIL to CAL Conversion
What are BIL files?
BIL is a binary raster format developed by ESRI to store multi-band remote sensing data, hyperspectral imagery, and continuous surface models such as Digital Elevation Models (DEMs). As an uncompressed layout where pixel data is organized sequentially by lines across all available spectral bands, a file of this type cannot be read independently because it completely lacks embedded geospatial or structural metadata. To function within a geographic information system, a .bil file must be accompanied by a plain-text sidecar file with a .hdr extension, which explicitly defines critical parameters including the total number of rows and columns, the band count, the data type, byte order, and optional georeferencing information. This raw format is traditionally complemented by other sibling files like .blw for spatial coordinates, .stx for statistics, and .prj for the map projection.
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 BIL to CAL?
Yes! reaConverter instantly converts .bil 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 BIL 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 BIL to CAL online?
If you only need to convert a few BIL files to CAL format, feel free to try our free online free online BIL to CAL converter — perfect for small batches with no installation needed!
How can I turn BIL files into CAL on my computer?
The best way to change BILs 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 BIL to CAL.
How can I automate BIL 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 BIL 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 bil to cal converter for batch processing.
What else can I do with reaConverter?
Convert raster to vectorChange bit depthConvert CAD formatsChange file creation dateConvert DICOM images
Related conversions
Other ways to convert BIL files, and other sources that convert to CAL.
