UTM to Latitude Longitude Converter

Enter UTM zone, easting and northing — GPSwitch converts to lat/long and 26 other coordinate formats instantly.

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What is UTM?

UTM (Universal Transverse Mercator) is a coordinate system that divides the Earth into 60 zones, each 6° of longitude wide. Within each zone, locations are expressed as easting (distance east of the zone centre line) and northing (distance north of the equator), both in metres.

UTM is the primary coordinate system used in surveying, military mapping, GIS, and topographic map production. A typical UTM coordinate looks like: 31U 448251 5412678 — zone 31U, easting 448251, northing 5412678.

How the conversion works

The conversion requires the zone number and letter, then applies the Transverse Mercator projection formulas to recover geographic lat/long. GPSwitch handles all zone identification and projection math — you only need to paste the UTM string. The result is in WGS84 datum, the standard used by GPS and Google Maps.

Accepted input formats

Common uses

Frequently Asked Questions

What information do I need for UTM to lat/long conversion?

You need three values: the zone number (1-60), the zone letter or hemisphere (N/S), the easting in metres, and the northing in metres. Example: 31U 448251 5412678. If you only have easting and northing without the zone, conversion is not possible.

Which datum does the conversion use?

GPSwitch converts to WGS84, the datum used by all civilian GPS devices, Google Maps, and OpenStreetMap. If your UTM data is in a different datum (NAD83, ED50), the result may be offset by a few metres.

Can I convert UTM to MGRS and Google Maps at the same time?

Yes. GPSwitch outputs all 27 formats simultaneously. When you paste a UTM coordinate, you get decimal degrees, DMS, MGRS, Geohash, Plus Code, and direct links to Google Maps and Waze — all at once.

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