Convert latitude and longitude (WGS84) to UTM easting, northing and zone. Enter your coordinates in decimal degrees or DMS and read the UTM values — free, in your browser, using proj4.
UTM (Universal Transverse Mercator) divides the world into 60 zones and gives positions as easting/northing in metres — the system surveyors, the military and engineers use for local accuracy.
The tool picks the correct UTM zone from your longitude automatically and reprojects from WGS84.
The zone is computed from longitude: zone = floor((longitude + 180) / 6) + 1. The hemisphere (N/S) comes from the latitude's sign. The tool does this for you.
Input can be decimal degrees (48.8584), DMS (48°51'30"N or 48 51 30 N), or DDM (48°51.5'N). The tool outputs DD, DMS, DDM, Web Mercator (EPSG:3857) and UTM at once.
Latitude runs −90 to 90 (N/S); longitude runs −180 to 180 (E/W). Mixing them up is the most common mistake — enter each in its own box.
The DD/DMS/DDM conversion is pure math and works offline. Web Mercator and UTM use a small projection library that downloads once and is then cached.
No. Everything is computed in your browser — nothing is uploaded.
