Geohashing:Coordinate calculators

A coordinate calculator is any tool which can perform the geohashing algorithm. There are many different implementations of calculators, but there are a couple which get the majority of use.

Peeron Maps

This is the original implementation, and the one used most often by geohashers. It offers an easy to use interface based on Google maps.

Basic Usage

• Pan the map around, and click on the location you wish to geohash in.
• Ensure the date in the entry box, which is in the lower left corner, is correct for the day you wish to geohash on, and hit the Update button.
• The coordinates are provided in the lower right corner in three formats, all of which describe the same location.
  • ddd.dddddd, ddd.dddddd
  • ddd mm.mmmm, ddd mm.mmmm
  • ddd mm ss.ss, ddd mm ss.ss

Other Useful Things

• If you wish to have the currently selected region, known as a graticule, be your default for each time navigate to the page, click the Set Default button. Cookies must be enabled for this to work.
• Below the date entry box, there are various different helpful links:
  • Link to this page: This is a link to bring up the page you are currently looking at, including the selected graticule and date.
  • Google map: This shows the current hashpoint on the standard Google maps. This is useful for getting driving directions to the nearest point on a road.
  • Nearby food: Because eating is often a fun activity to do with people you met a geohash, especially if it is a location you can't stick around at for too long.
  • Day: A link to the date page on the wiki for the date you selected.
  • Meetup: A link to the expedition or planning page for the graticule and date combination you selected.
  • Graticule Name: This will take you to the page corresponding to the graticule you selected. The text of this link will vary based on the graticule you have selected.

Small Hash Inquiry Tool (a.k.a. anthill)

Ekorren created this tool out of a desire to have something which perfectly suited his needs. As it turns out, many people found out they have similar needs to Ekorren, and started using his tool. It is a little more complex to use than the Peeron tool, but provides some very useful added functionality.

Basic Usage

• Fill in your actual latitude and longitude in ddd.dddddd format. Use '-' for South or West.
• Click the Go button.
• Your current graticule will be shown as the center of the 9 maps, and each of the surrounding graticules will be shown in their relative positions.
• Below the map images, there is some useful information:
  • A link to the wiki page for that graticule
  • The coordinates in ddd mm.mmm format
  • A straight-line distance to the point from the coordinates you entered
  • Links to the point on Google, and Open Street Maps (OSM)

Other Useful Things

See the tool's page for more information on usage and features of this rather feature-rich calculator.

Active Geohasher

A geohash map browser, notification tool and community tracker. It can even generate your geohashing markers.

http://www.activegeohasher.com