HGT → PLT · Windows

Convert HGT to PLT

Batch convert HGT to PLT on an ordinary Windows PC. No GIS licence, no command line, the same settings applied to every file.

HGT to PLT conversion is faster with the right tool. reaConverter handles everything from a few files to thousands in one batch. Processes files consistently every time, with full control over quality and output settings. Survey and cadastral data stays on your machine, with no upload at any point.

DownloadHGT to PLT ConverterConvert
HGT to PLT
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.hgt.PLT
4.8

Converting files since 2001

Runs offline — nothing uploaded

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How to Convert Multiple .hgt Files to .plt?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.

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Install reaConverter

2. Load your HGT files

Launch reaConverter and drop in your HGT files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

Load your HGT files into reaConverter

3. Select PLT as output format

Choose PLT as the target format. Pick a destination folder or let reaConverter save files alongside the originals.

Select PLT as output format

4. Start HGT to PLT conversion

Then simply press the Convert button and your conversion will begin in no time!

Start Conversion

Once the conversion is complete, you can find your PLT files in the destination folder you selected.

Step by step

How It Works

reaConverter offers the fastest, simplest solution for converting your HGT files into PLT without GIS software - all files processed on your PC for maximum privacy and speed.

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Technical note

HGT to PLT: what to expect from the conversion

Geospatial coordinates are absolute positions on the earth, and they are large: a projected easting runs to six or seven digits, while latitude and longitude are small decimals. PLT expects a drawing laid out near its own origin in millimetres or inches. The geometry itself converts correctly, but it can land tens of kilometres from 0,0, or arrive at a scale where an entire county is forty units across. Zoom to extents first, then measure one known distance before dimensioning anything. A line in an HGT image is several pixels wide, so tracing it can mean different things and the mode is yours to choose. Centreline returns a single line running down the middle of each stroke, which is what a scanned drawing needs: one entity per line, snappable and dimensionable, rather than a long thin rectangle around it. Outline follows both edges and returns closed shapes, which suits clipart, logos and anything that will be filled or cut. A precision setting controls how closely the traced paths follow the pixel edges. One thing to plan for: vectorised output from this path is black and white, so colour in the HGT does not survive as colour in the PLT.

Map Data Workflow

From map data to a working drawing

Converting HGT to PLT usually means handing GIS data to someone who works in CAD. reaConverter makes that hand-off without a GIS seat on either side, for one layer or a whole delivery.

  • Convert every layer in a folder to PLT with the same settings
  • Go the other way too, from DWG to Shapefile, when the GIS team needs the drawings back
  • Render the same data to PDF for a quick review copy
  • Pick up new data automatically with Watch Folders, or script the job from the command line

Everything runs on your PC, which matters for cadastral, utility and client data that should not pass through an upload form.

GIS data conversion

User reviews

What people say after the first batch

Average User Rating:4.8
Last updated on September 13, 2026
We regularly work with PLT files from various CAD systems, and reaConverter has proven to be the most efficient solution for batch converting them into accessible formats like PDF and TIFF. Its ability to handle PLT files accurately, without losing line weights or scaling, is essential for maintaining the integrity of our technical drawings. Combined with command-line support and Watch Folder automation, it fits perfectly into our production workflow, saving hours of manual processing each week.
Martina S.
Martina S.
Technical Documentation Specialist
Our laser-cutting shop receives PLT files daily from clients. reaConverter automates the process of turning them into DXF for our machines—saving us hours of manual work in specialized CAD software.
Andrew B. Martin
Andrew B. Martin
Satisfied Customer
One of the few tools that correctly interprets PLT files without corrupting vector data. A must-have if you work with plotters or legacy CAD systems.
M. Roberts
M. Roberts
Satisfied Customer
We evaluated several tools for automating PLT to raster conversions, and reaConverter stood out for its reliability and command-line flexibility. The software integrates seamlessly into our custom scripts, enabling fully automated processing of architectural drawings for archiving and distribution. The Watch Folders functionality adds an additional layer of automation, making it easy to trigger complex conversion workflows with zero manual input. reaConverter has become a critical component in our document management pipeline.
Alexander K.
Alexander K.
CAD Systems Engineer
5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs.
J. Mitchell
J. Mitchell
Satisfied Customer
reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud.
Malik T. Martin
Malik T. Martin
Satisfied Customer

FAQ

HGT to PLT Conversion

What are HGT files?

HGT (short for height) is the file extension of elevation data from the Shuttle Radar Topography Mission (SRTM), a NASA mission of 2000 that mapped the terrain of most of the world, from about 56 degrees south to 60 degrees north. The data are cut into tiles, each covering exactly one degree of latitude and one degree of longitude, and every tile is a separate file. The name tells where it belongs: for example, N20E100.hgt covers the area from 20 to 21 degrees north and from 100 to 101 degrees east. The file itself contains only the heights in meters, with no other information. The data come at two levels of detail, about 90 meters per cell and about 30 meters per cell, and they are in the public domain.

What are PLT files?

PLT is a vector image format representing the HPGL standard language developed by Hewlett-Packard for printing line drawings. HPGL is supported by AutoCAD and other CAD software programs. PLT files represent plotter images that can be printed using a computer printer specialized in vector graphics (called "plotter"), which renders images as lines not as dots.

Can reaConverter convert HGT to PLT?

Yes! reaConverter instantly converts .hgt to .plt 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 HGT to PLT 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 HGT to PLT online?

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

How can I turn HGT files into PLT on my computer?

The best way to change HGTs to PLTs 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 HGT to PLT.

How can I automate HGT to PLT 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 HGT files to PLT using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line hgt to plt converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesConvert medical imagesImage resizerConvert Gerber filesConvert RGB to CMYK

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