Lat Long to UTM Converter

How to use this latitude and longitude to UTM converter

What this calculator does. This converter changes a WGS 84 latitude-and-longitude pair in decimal degrees into Universal Transverse Mercator coordinates. It reports the numbered UTM zone, north or south hemisphere, easting, northing, latitude band, grid zone designator, and a complete one-line coordinate. The result is a coordinate-system conversion, not a property survey, legal boundary determination, or guarantee that a particular map layer uses the same datum. UTM divides most of the world into 60 six-degree-wide zones, a structure explained by the U.S. Geological Survey overview of UTM.

When to use it. Use the converter when preparing coordinates for a GIS project that expects metres, checking the UTM grid printed on a topographic map, translating GPS coordinates for field notes, or creating a consistent easting-and-northing reference for nearby locations within one zone. For long routes crossing zone boundaries, preserve the original latitude and longitude as well, because UTM values are zone-dependent.

How to calculate. The calculator opens with a ready-to-use demonstration for central Kyiv: latitude 50.4501° and longitude 30.5234°. Its example workbook is immediately available.

1. Replace Latitude with the location's signed decimal-degree latitude. Use positive values north of the equator and negative values south of it.
2. Replace Longitude with the signed decimal-degree longitude. Use positive values east of Greenwich and negative values west of Greenwich.
3. Read the Complete UTM coordinate, then verify the separate zone, hemisphere, easting, northing, latitude band, and grid zone designator cards.
4. Use Download Excel to export the current validated inputs and results to a real XLSX workbook. Reset clears the demonstration and calculated state; Excel export remains unavailable until both required coordinates are complete and valid again.

Input guide. Latitude is required and accepts a plain decimal number in degrees from – 80 through 84, such as 50.4501. A larger positive latitude moves north; a more negative value moves south. Do not paste degree-minute-second symbols, compass letters, or a decimal comma: convert those values to signed decimal degrees first. Longitude is also required and accepts a plain decimal number from – 180 through 180, such as 30.5234. Longitude selects the normal six-degree UTM zone, with the standard Norway and Svalbard zone exceptions applied. A value of 180° is treated as the eastern edge of zone 60. Do not enter “30E” or thousands separators. The parser deliberately rejects ambiguous or mixed-unit text rather than silently changing its meaning.

Output guide. Zone is an integer from 1 to 60. Hemisphere identifies whether the northing uses the northern or southern UTM convention. Easting is the projected x-coordinate in metres and includes the standard 500,000 m false easting. Northing is the projected y-coordinate in metres; southern coordinates include a 10,000,000 m false northing. Latitude band is an 8-degree letter band from C through X, excluding I and O; it is a location label associated with MGRS rather than a mathematical input to the projection. Grid zone designator joins the zone number and latitude band, such as 36U. The Complete UTM coordinate combines zone, hemisphere, rounded easting, and rounded northing for easy copying. The detail table also shows the input coordinates, central meridian, and false offsets used by the conversion.

Worked example. For 50.4501° latitude and 30.5234° longitude, the normal zone rule gives zone 36, whose central meridian is 33°. Applying the WGS 84 Transverse Mercator equations with scale factor 0.9996 produces an easting of approximately 324,182.209 m and a northing of approximately 5,591,607.607 m. Rounded to the nearest metre, the first-open result is 36N 324,182 m E 5,591,608 m N. Latitude 50.4501° lies in band U, so the grid zone designator is 36U.

Learn more. The USGS explanation of UTM coordinates on topographic maps describes zone numbering and metre-based grid readings. For broader coordinate-reference-system terminology and official identifiers, consult the EPSG Geodetic Parameter Dataset.