Military Grid Reference System

MGRS / USNG to Latitude and Longitude

Grid Reference

Example:
  12U UA 84323 40791
  12U UA 84 40

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Latitude and Longitude to MGRS / USNG

GPS Location
Latitude	Longitude

Example:
Latitude 50.00820   Longitude -112.61440

Latitude					Longitude
Degree	Minute	Second	N/S		Degree	Minute	Second	E/W
			N S					W E

Example:
Latitude 50° 00' 29.52" N   Longitude 112° 36' 51.84" W

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United States National Grid (USNG) - Grid Zone Designations (GZD)

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USNG Map with 6 x 8 Degree Grid Zone Designators

United States National Grid Index Map in PDF

United States National Grid Page at Federal Geographic Committee

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World Map with MGRS Grid

(*) Get GPS Location Button

When supported, clicking this button automatically fills in your current Latitude and Longitude within a few seconds.

When not supported, clicking the button does nothing.

The best accuracy (within about 10 meters) is obtained on devices with a built in GPS chip such as smart phones which can directly receive satellite GPS signals.

On devices without a GPS chip, Latitude and Longitude are guesstimated by Google based on your IP address and the known locations of the nearest WIFI access points and their addresses.

GPS reception in downtown Edmonton can be as much as 40 meters off, due to intereference from tall buildings, which can put you behind the building in a sketchy alley, instead of in front of the fancy front doors on Jasper Ave (Main Street Edmonton).

NB: Please check that the 'Get GPS' button works before you leave the office.

Today's security protocols turn GPS off by default and it can be very difficult to turn back on while in the field. Trouble shooting while in a moving vehicle with bad internet access while the driver is asking for directions is not fun.

The Pixel 6a we tested on had four layers of settings that needed to be turned on for 'Get GPS' to work. These 4 layers of settings are: 1) The chip, 2) the os, 3) the app and 4) the webpage.

We reccommend that test your phone to "get gps location" first, in the office, with a desktop computer handy, with access to google search and with tech nerds about.