Geodesy Online is a powerful cloud-based platform for geospatial professionals, offering precise coordinate transformations, Retrieve elevation data retrieval, and advanced geodetic calibration. Designed for developers, engineers, and GIS specialists, it simplifies complex geodesy workflows through an intuitive REST API and modern web tools.
Seamlessly convert coordinates between geocentric, spherical, and planar systems. Supports a wide range of map projections and geoid models, enabling precise transformation for any geospatial data. Real-time location? Instantly convert it to any supported coordinate system with ease.
Learn MoreFine-tune your coordinate systems with advanced calibration tools. Adjust transformation parameters to account for local shifts and discrepancies. Perform both horizontal and vertical corrections, including conversion between normal and geodetic heights for high-accuracy positioning.
Learn MoreA powerful and flexible REST API that allows developers to integrate geospatial capabilities directly into their applications. You can transform coordinates, perform height recalculations, and apply geodetic calibrations through simple HTTP requests.
Learn MoreWorks with any coordinate system across the globe, supports global and local coordinate systems.
Low-latency transformations and real-time response in milliseconds.
API key protected endpoints with high availability infrastructure.
Trusted by geospatial engineers and surveyors.
Modern REST API with clear documentation.
Cloud-hosted, instantly accessible.
Perform transformations between geocentric, geodetic and planar coordinate systems
Identify parameters using the method of least squares
Add coordinate systems from EPSG registry and perform transformations between them
Transform coordinates of your location to any coordinate systems
Upload custom Supports NTv2 and NTv1 grid files for datum transforms
Calculate the normal height (Hn), ellipsoidal height (He) and geoid anomaly (A)
Create custom systems, edit parameters, apply geoids, set corrections, switch units
View coordinates on the map, add new ones, draw polygons and polylines
Access app anywhere from any device with a browser and the Internet
| Free | Premium | |
|---|---|---|
| Convert points between different coordinate systems | ||
| Transform normal heights to geodetic heights and vice versa | ||
| Support for geocentric, spherical, and planar coordinate systems | ||
| Compatible with Lambert and Mercator projection types | ||
| Supports geoid models including EGM96 and EGM2008 | ||
| Access to a comprehensive database of popular coordinate systems | ||
| Create custom coordinate systems tailored to your needs | ||
| Duplicate and modify existing coordinate systems | ||
| Manually define coordinate system parameters | ||
| Enter coordinates manually when needed | ||
| Works with various units of measurement | ||
| Visualize coordinates directly on an interactive map | ||
| Display local coordinate system points using scatter plots | ||
| Apply horizontal and vertical corrections for precision | ||
| Adjust transformation parameters | - | |
| Create points interactively by clicking on the map | - | |
| Import and export projects | - | |
| Import and export coordinate points | - | |
| Importing coordinate systems from Mapinfo (Transverse Mercator, Lambert Conformal Conic) | - | |
| Add a point based on your current GPS location | - | |
| Retrieve elevation data (SRTM) | - | |
| Supports NTv2 and NTv1 | - |
At the moment, the service is in beta mode and is completely free.
Basic and Premium subscriptions. All registered users get access to the features described in the Basic subscription for free. The user has the right to activate a Premium subscription for free while the site is in beta mode and get access to an expanded set of features.
Basic subscription is indefinite and free. All registered users get free access to the features described in the Basic subscription. Premium subscription is issued for 30 days and is free of charge. After 30 days, the premium subscription is canceled automatically and can be reactivated by the user for free.
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