Convert UTM to Latitude/Longitude

Recover standard GPS coordinates from UTM projection data. Useful for checking site plans or GIS export data on standard maps.

How to Use

Enter Zone, Easting, and Northing. Select Hemisphere (North/South). Click Convert.

Online Tool

Input: UTM
Output: WGS84
⚠️ Datum Hazard: Read Before Conversion

Coordinate values only have meaning when attached to a Datum.

  • WGS84: Standard for GPS, Google Maps, Web Mercator.
  • NAD27: Used in older USGS topographic maps (pre-1983).

Using the wrong datum can shift your position by 20-100+ meters. Always verify the source datum of your coordinates.

Use Cases

FAQ

Q: Is this based on WGS84?

A: Yes, this tool assumes the WGS84 ellipsoid, which is standard for GPS data.

Q: What if I don't know the Hemisphere?

A: You must specify North or South. An incorrect hemisphere will result in a massive position error.

Q: How precise is the calculation?

A: The logic uses standard Karney/Transverse Mercator formulas verified for sub-millimeter precision.

Professional Verification Disclaimer

This content is provided for decision-support and educational purposes for geospatial professionals and does not constitute legal, surveying, or engineering advice. Regulations and official standards vary by jurisdiction and project scope. Information is based on publicly available standards as of January 11, 2026. For critical projects, always verify current requirements with:

Reference: Professional Use & Scope

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