MGRS Cardinal
A fast MGRS map for your phone or computer. Drop a pin and read its Military Grid Reference System grid, search any grid reference, and measure bearings in mils or degrees. You can also plan on a shared map with your team.
Use the Android app on your phone, and the desktop app on your computer. Your plans sync between them.
How to read an MGRS grid
A full grid like 15T NB 90876 53845 has four parts:
15T : the grid zone (the UTM zone number and a latitude band letter).NB : the 100 km square inside that zone.90876 : the easting, how far east you are inside the square.53845 : the northing, how far north you are inside the square.
More digits give more precision: a 6-digit grid (908 538) is good to 100 m, an 8-digit grid to 10 m, and a 10-digit grid to 1 m. Use the 6 / 8 / 10 buttons on the grid readout to switch. Read the easting first, then the northing: “right, then up”.
What you can do for free
See the grid of the map center, live, as you move the map, and copy it with one tap.
Drop pins and read their grid and latitude/longitude.
Turn on MGRS grid lines (the grid button). The spacing follows your zoom, from 100 km down to 100 m, with the easting and northing numbers along the edges like on a paper map.
See the Hybrid satellite map (satellite with roads and names), and go to your current location. Premium adds every other map style.
Premium
Premium ($9.99 a year) unlocks everything: MGRS grid search in any spacing (15TNB9087653845, 15T NB 90876 53845, 15TN B9087653845) plus lat/long; lines with bearing and distance in mils or degrees, from grid, true or magnetic north; circles, rectangles and polygons with radius, perimeter, area and corner grids; text labels and detailed pin types; Go to navigation with a live bearing, distance, your walked trail and a big walking display ; a mil compass with true and magnetic north and a map that turns with you; light and moon data (BMNT, EENT, sunrise, sunset, moon); red night mode; every map style; NATO-style unit symbols ; PDF map overlays ; KML export for Google Earth and ATAK; Excel/CSV import; instant sync between your computer and phone (plan at home on a big screen, and everything is on your phone the moment you head out); and team maps for up to 10 people with live positions (only when you choose to share), call signs, who’s online, team chat with photos and files, and locks.
Who it’s for
Soldiers and cadets practising map and compass work, search and rescue teams, hunters, hikers and backcountry travellers, surveyors, and anyone who needs to share or convert grid references quickly.
MGRS Cardinal is an independent tool, not an official Government of Canada or military product. Grids and bearings are calculated estimates, and magnetic declination isn’t applied. Always confirm against official maps and equipment when safety matters. Don’t enter classified or operationally sensitive information.
Send feedback
Questions or feedback: contact us or support@mgrscardinal.com ·
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