MGRS → WGS 84

MGRS to latitude and longitude converter

Convert MGRS references to latitude and longitude individually or in batches, with accepted formats, cell-centre and coverage notes.

Batch coordinate converter

Enter one complete MGRS reference per line.

This reference identifies a cell; conversion uses its centre. Only UTM-style MGRS is supported; use UPS for polar coordinates.

Input example: 30UXC9933010142

0 of 100 references

Results use: latitude, longitude order.

Output example: 51.5072, -0.1276

Numeric coordinates are rounded for display: decimal latitude/longitude to up to 6 decimal places, metre-based coordinates to up to 3, DMS seconds to up to 2, and DDM minutes to up to 4.

About this conversion

Convert complete UTM-style Military Grid Reference System references to WGS 84 latitude and longitude.

Frequently asked questions

What input is accepted?

Enter the complete UTM-style MGRS reference. Zone, band and square letters are required, and easting and northing digit groups must have equal length from zero to five.

What output will I receive?

By default, results show WGS 84 latitude first and longitude second in decimal degrees. Select Reverse coordinate order to show longitude first. Displayed decimal places do not add accuracy to the source cell.

Which axes and units are used?

MGRS input is a structured text reference for a metre-based grid cell. WGS 84 output defaults to latitude then longitude in degrees.

How are precision and datum handled?

A decoded reference identifies a cell; conversion uses its centre as the representative point. Cell precision is not the same as source accuracy.

Where can I use this coordinate system?

This converter supports UTM-style MGRS from 80° south through 84° north; UPS-style polar MGRS is not supported.

What should I check?

  • Include the zone, latitude band and 100 km square letters.
  • Use easting and northing digit groups of equal length.
  • Use numeric UPS rather than a polar UPS-style MGRS reference.

Which point is returned for an MGRS cell?

The converter returns the centre of the cell identified by the complete MGRS reference.

Does this include polar MGRS?

No. Only UTM-style MGRS is supported; use numeric UPS for the polar caps.