Lat Long to UTM Converter
Convert latitude and longitude into UTM zone, easting, and northing.
Accepts decimal degrees from -80° to 84° latitude and -180° to less than 180° longitude.
Updated August 10, 2026
Introduction
The lat long to UTM converter turns a latitude and longitude — the way GPS devices usually report a location — into Universal Transverse Mercator (UTM) coordinates, the grid system used by many mapping, surveying, and GIS tools. Instead of a pair of angles you get a zone plus an easting and northing measured in meters, which makes distances, areas, and grid overlays much easier to work with.
A UTM result is a single grid location made of three parts: zone (which 6° band you are in), easting (meters east of that zone's central meridian), and northing (meters north of the equator or of the southern false origin). The calculator reports all three, plus the shorthand UTM coordinate and Grid Zone Designator.
Who is this for?
- Surveyors and GIS analysts who need grid coordinates for layers, plots, and fieldwork.
- Outdoor and navigation users whose maps or devices reference UTM grids instead of plain latitude and longitude.
- Students and engineers learning how geographic coordinates map onto a meter-based grid.
You can enter the source location in decimal degrees (for example ) or in degrees, minutes, seconds (for example ), with North/South and East/West directions chosen separately. If your coordinate arrives in another format, run it through the Coordinates Converter first to normalize it.
How to use / quick start
- 1Pick the Coordinate type: Decimal degrees or Degrees, minutes, seconds (DMS).
- 2In decimal degrees, enter latitude (from −80° to 84°) and longitude (from −180° up to, but not including, 180°).
- 3In DMS, choose North or South and East or West, then fill in the degrees, minutes, and seconds for latitude and longitude.
- 4Read the Zone, Easting, and Northing. The UTM coordinate and Grid Zone Designator (GZD) boxes below summarize the same result.
Quick example: the Eiffel Tower
The Eiffel Tower sits at 48.8584° N, 2.2945° E. If your source reports the same spot in degrees, minutes, and seconds, convert it first:
Entering N and E gives zone 31, easting 448,252 m, and northing 5,411,955 m.
How to interpret the results
The easting is the distance from the zone's central meridian plus a 500,000 m offset, so values stay positive across the whole zone. The northing is measured from the equator in the northern hemisphere, or from a false origin 10,000,000 m south of the equator in the southern hemisphere. Both are rounded to the nearest meter.
Calculation method
Each UTM zone covers 6 degrees of longitude, numbered from 1 (at 180° W) to 60. The zone follows directly from the longitude:
Zone number
Easting and northing are then computed with the standard transverse Mercator projection on the WGS84 ellipsoid, which flattens the curved Earth onto a meter-based grid. Three details help the results make sense:
- 1False easting of 500,000 m — the central meridian of every zone is labeled 500,000 m, so eastings run from about 166,000 m to 834,000 m instead of dipping below zero.
- 2Southern hemisphere — northing is measured from a false origin 10,000,000 m south of the equator, keeping southern values positive.
- 3Two standard exceptions — southern Norway extends zone 31 east into longitude 3° E, and the Svalbard islands in zone band X shift their zone boundaries. The converter applies these adjustments automatically, so the zone you get can differ by one from a plain band calculation near those areas.
Real-world examples
A southern-hemisphere city
Sydney, Australia sits at 33.8568° S, 151.2153° E. In DMS that is S, E. With South and East selected:
The result is zone 56, easting 334,901 m, northing 6,252,289 m, with a GZD of 56 S — the S confirms it lies in the southern hemisphere.
A place with an adjusted zone
Take 60° N, 5° E in Norway. A plain band calculation gives zone 31:
Because southern Norway extends zone 31 east past 3° E, the converter reports zone 32, easting 276,980 m, northing 6,658,157 m. If a device downstream expects the adjusted zone, this is the value it needs.
Limitations
- •UTM is only defined for latitudes from about 80° S to 84° N; the calculator rejects values outside that range.
- •Results are rounded to the nearest meter, so they suit mapping and planning but not survey-grade work.
- •Outputs use the WGS84 ellipsoid. If the receiving system assumes a different datum, coordinates can shift by a small amount.
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