County Maps US

Tools Coordinates

Address to Coordinates

Paste an address and get its coordinates in decimal degrees, DMS, DDM, geohash, Plus Code, UTM and MGRS, with the matched place and a pin on the map.

How to use it

  1. Type an address, a city or a ZIP code and pick the match from the list, or press Enter to take the top result.
  2. Copy the coordinates in the format you need. Every row has its own copy button.
  3. Drag the pin if the geocoder put it on the wrong building; the formats update as you drag.
  4. For a list, switch to Batch, paste up to 25 addresses (one per line) and download the CSV.

How it works

Addresses are matched by Photon, a search service built on OpenStreetMap data. The first result is taken as the match, and its coordinates are then converted in the browser into degrees-minutes-seconds, degrees and decimal minutes, a 9-character geohash, an 11-character Plus Code, UTM on WGS84 and an MGRS grid reference.

The match is only as good as the address in OpenStreetMap. Rural addresses, new developments and unit numbers often resolve to the street or the town rather than the door. Batch mode sends one query about every 300 milliseconds and stops at 25 lines to keep within the service's fair-use limits.

Questions

How accurate are the coordinates?
For an address that OpenStreetMap has as a house number the pin is usually within a few metres of the building. If the address is only known at street level the pin lands on the street, and the matched-place line under the map says so. Drag the pin to correct it.
Can I convert a whole spreadsheet of addresses?
Up to 25 at a time. Paste one address per line in Batch mode, wait for the progress line to finish and download the CSV, which keeps your original text next to the latitude, longitude and matched name.
Why is latitude listed before longitude?
That is the convention for written coordinates and for Google Maps. GeoJSON and most GIS software use longitude first, which is why the exported CSV labels each column.

All map tools, free and without an account. Location data is processed in your browser and by the open geocoding services named on the sources page; nothing is stored by this site.