FAQ
DT2 to CAL Conversion
What are DT2 files?
DT2 is the file extension for Level 2 of Digital Terrain Elevation Data (DTED), the high-resolution tier of the elevation series standardized in MIL-PRF-89020 by the U.S. National Geospatial-Intelligence Agency (NGA). A file of this type covers a one-degree by one-degree cell with a post spacing of 1 arc-second, about 30 meters at the equator, which makes it suitable for detailed terrain work such as viewshed modeling, slope analysis, route planning, and flood simulation. It is the most detailed of the three standard levels, following the .dt0 and .dt1 products. The content is organized as header records with identification and accuracy information, followed by a regular grid of elevation values for the cell. Because of its fine sampling, Level 2 files are considerably larger than those of the lower levels.
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 DT2 to CAL?
Yes! reaConverter instantly converts .dt2 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 DT2 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 DT2 to CAL online?
If you only need to convert a few DT2 files to CAL format, feel free to try our free online free online DT2 to CAL converter — perfect for small batches with no installation needed!
How can I turn DT2 files into CAL on my computer?
The best way to change DT2s 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 DT2 to CAL.
How can I automate DT2 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 DT2 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 dt2 to cal converter for batch processing.
What else can I do with reaConverter?
Convert Gerber imagesChange image color spaceConvert GIS filesConvert PDFWatermark images
Related conversions
Other ways to convert DT2 files, and other sources that convert to CAL.
