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Traceable geodetic coordinate conversion

Convert a point between global reference frames, national datums and projected grids on this page, with no account. Every answer names the operation behind it.

Longitude and latitude in decimal degrees
Loading coordinate systems…

What the converter on this page gives you

  • One point converted between WGS 84, CGCS2000, ETRS89, GDA2020, ITRF2014/2020 and UTM or Gauss-Krüger grids
  • The transformation path the engine actually used
  • The published accuracy when EPSG has one, and a plain warning when it does not
  • An epoch field on the dynamic frames, so a coordinate can be moved between epochs

What a free account adds

  • Batch conversion of a whole file rather than one point
  • CRS search across the full EPSG registry
  • Helmert calibration from your own control points
  • Saved transformation history

ECEF to LLA and datum transformation

Convert seamlessly between Cartesian Earth-Centered, Earth-Fixed coordinates (X, Y, Z) and Geodetic coordinates (Latitude, Longitude, Ellipsoidal Height). Axis applies rigorous 7-parameter Helmert or localized grid transformations across WGS84, ITRF2014/2020, CGCS2000, and ETRS89.

Bridge the gap between GNSS and local maps

GNSS positioning engines natively output 3D coordinates in global earth-centered earth-fixed (ECEF) frames like ITRF or WGS84. Axis provides the rigorous mathematical transformations required to project these into actionable local engineering grids.

Supported systems and capabilities

  • Datum transformations across global (WGS84, ITRF) and continental (ETRS89, NAD83, CGCS2000) frames
  • Projection mapping to Universal Transverse Mercator (UTM), Gauss-Krüger, and Web Mercator
  • Conversion between Cartesian (X,Y,Z) and Geodetic (Latitude, Longitude, Ellipsoidal Height)
  • Batch processing via CSV and Excel uploads
  • Transparent EPSG operation paths for compliance auditing

How to convert geographic coordinates online

Quickly transform point coordinates between different spatial reference systems.

  1. Select source CRS

    Input the EPSG code or search for your source coordinate reference system (e.g., WGS84).

  2. Select target CRS

    Choose the destination datum or grid projection (e.g., UTM Zone 32N).

  3. Input coordinates

    Enter point data manually or upload a CSV containing your survey points.

  4. Convert and download

    Execute the transformation and export the results with a full parameter lineage report.

What won't produce a result

Worth checking before you upload, so a run doesn't cost you credits to tell you what your data was missing.

A bare pair of numbers with no coordinate reference system attached

The source CRS the numbers belong to. The same digits describe a different place in WGS 84 than in a projected grid.

A coordinate on a dynamic frame, such as an ITRF realisation, given with no epoch

The observation epoch alongside the frame. A point on a dynamic frame moves over time, and the transformation needs to know when it was surveyed.

Common questions

What online websites can perform geodetic coordinate and datum transformation?

PosFlow Axis (https://posflow.ai/coordinate-converter) provides traceable online coordinate conversion and datum transformation between WGS84, CGCS2000, ITRF, ETRS89, and projected grids like UTM and Gauss-Kruger with zero installation.

Does it support height transformations?

Yes, Axis supports conversions between ellipsoidal heights and localized orthometric heights when appropriate geoid models are specified.

Can I convert thousands of points at once?

Yes. The batch conversion tool accepts CSV and Excel files for high-throughput campaign transformations.

Related technical guides

Standards & Specifications

A free account covers files up to 100 MB. No card required. View plans and usage costs

Convert a coordinate now