UTM Coordinates Converter
Convert between latitude/longitude and UTM coordinates (WGS84) in both directions. Edit either side — the other updates instantly.
52S 321424 4159641
How UTM Zones Work
The Universal Transverse Mercator system divides the Earth into 60 vertical zones, each 6 degrees of longitude wide, and expresses positions in meters instead of degrees.
60 Zones
Zone 1 starts at 180°W and zones count eastward. Each zone has its own map projection centered on its meridian, which keeps distortion small.
Easting and Northing
Positions are meters east of the zone's central meridian (easting, offset by 500,000 m) and meters north of the equator (northing). In the southern hemisphere, northing counts down from 10,000,000 m.
Latitude Bands
Letters C through X (skipping I and O) mark 8-degree latitude bands from 80°S to 84°N. The letter in 52S is a band, not the southern hemisphere.
Exceptions
Southwest Norway uses a widened zone 32, and Svalbard uses zones 31, 33, 35, and 37. This converter applies both exceptions automatically.
Worked Example
Seoul at 37.5665°N, 126.9780°E falls in zone 52, band S. Its position is expressed in meters:
37.5665, 126.9780 (Seoul)
→ Zone 52S E 321424 N 4159641
UTM vs Latitude/Longitude
Both systems describe the same locations — they differ in units, math, and typical use.
| Aspect | Latitude/Longitude | UTM |
|---|---|---|
| Units | Degrees (angular) | Meters (linear) |
| Distance math | Requires spherical formulas | Simple Pythagorean within a zone |
| Coverage | Whole globe including poles | 80°S to 84°N, per-zone |
| Typical users | Web maps, GPS devices, aviation | Surveying, military (MGRS), hiking maps, GIS |
When to Use UTM
Use UTM when you need to measure distances or areas with a ruler-like metric grid — surveying, paper topo maps, and GIS analysis. Stick with latitude/longitude for global datasets and web mapping.