UTM Zone Finder

The UTM Zone Finder resolves the Universal Transverse Mercator (UTM) grid zone for any point on Earth. Enter a latitude and longitude and get the zone number, latitude band letter, hemisphere, the combined zone designation (e.g. 32V), and the zone's central meridian — the reference longitude the projection is centered on.

How to use it

1. Enter the latitude of the point.
2. Enter the longitude of the point.
3. Read the zone details. Results update as you type; copy or download them as CSV.

Each coordinate box accepts either decimal degrees (59.9139, 10.7522) or degrees-minutes-seconds (59°54'50"N, 10 45 8 E). The format is detected automatically, and a N/S/E/W hemisphere letter or a leading minus sign sets the direction, so you can paste coordinates straight from Google Maps, a GPS device or a survey record.

How UTM zones work

UTM divides the world into 60 north-south zones, each spanning 6° of longitude, and 20 latitude bands lettered C through X (skipping I and O to avoid confusion with 1 and 0), each spanning 8° of latitude except the northernmost band X, which spans 12°. A point's full zone designation — like 32V or 18T — pins it to one of the 1,200 resulting grid cells. UTM covers 80°S to 84°N; the poles use a separate Universal Polar Stereographic (UPS) grid instead.

The Norway and Svalbard exceptions

Two regions bend the regular 6°-wide grid to keep local landmasses inside a single zone instead of splitting them across a boundary:

• Norway: in latitude band V (56°–64°N), zone 32 is widened to cover 3°E–12°E instead of the usual 6°–12°E, so all of southern Norway falls in one zone. Zone 31 is correspondingly narrowed to 0°E–3°E.
• Svalbard: in latitude band X (72°–84°N), the grid uses only four zones — 31, 33, 35 and 37 — each 12° wide, instead of the usual six 6°-wide zones. Zones 32, 34 and 36 are unused there.

This tool detects both exceptions automatically and flags them in the result, instead of returning the naive longitude ÷ 6 zone that most simple calculators do — which is wrong for any point in these two regions.

Is my data private?

Yes. The entire calculation runs locally in your browser — coordinates are never uploaded to a server, so you can use it with sensitive location data with confidence.

Common uses

Setting up a GPS device or GIS software for UTM/MGRS coordinates, converting between geographic and projected coordinate systems, land surveying and cadastral mapping, and looking up which projected coordinate reference system (CRS) applies to a given site.