Coordinates you type are read in this page. Only a place name is sent to the map's search.
Geo Marker finds the coordinates of a place and the place of a coordinate. Click anywhere on the map, or search an address, and a mark shows its position as decimal degrees, degrees and minutes, degrees minutes seconds, UTM, an MGRS grid reference and a Plus Code, each with one-click copy. It works the other way too: type coordinates in any of those notations and the mark goes where they point.
Search for the address or place name, or click the spot on the map. A numbered mark is placed and the panel shows its coordinates as decimal degrees, degrees and minutes, degrees minutes seconds, UTM, MGRS and a Plus Code, each with a Copy button.
Type or paste the coordinates into the search box and press Enter. Latitude and longitude in any common notation, UTM, MGRS grid references and Plus Codes are all read: 40.815922, -73.606312; 40°48'57.3"N 73°36'22.7"W; 18T 617538 4519257; 18T XL 17538 19257; 87G8R98V+9F8. The page says how it read what you typed and puts a mark there.
Yes. A full reference such as 18T XL 17538 19257 marks a point to the meter. A shorter one, such as 18T XL 175 192, names a 100 meter square, so the page marks the square's southwest corner, as a protractor on a map does, and draws the square. The MGRS grid can be drawn over the map from the panel.
They are two ways of writing the same UTM zone. 18T is zone 18 with the latitude band T, the letter an MGRS reference starts with. 18N means zone 18 in the northern hemisphere. The easting and northing are the same. This page writes the band and reads both; where a letter could mean either, it says which reading it took and offers the other.
An MGRS reference names the square a point is in, so its digits are cut off, never rounded. This page cuts UTM to whole meters the same way, so the UTM line ends in the digits of the MGRS line. A converter that rounds UTM can show a last digit one higher for the same point.
WGS 84, the datum of GPS and of current maps. Latitude and longitude are shown to six decimal places, about 10 cm on the ground. An older paper map on NAD 27 has its grid about 200 meters away from this one in parts of the United States: check the map's margin.
Yes. Every click adds a numbered mark. The panel lists them, shows the distance and azimuth from the mark before, and downloads them all as KML, GPX, CSV or GeoJSON. Copy link gives an address that opens the same marks. To plot a pasted list of coordinates at once, use Plot Points. To convert one coordinate field by field, use the Coordinate Converter.
Yes. Geo Marker, on iPhone, finds and keeps the coordinates of any place. Paid. App Store