How a location QR code works
The code holds a geo: link with two numbers, latitude and longitude, separated by a comma: geo:40.748817,-73.985428. Latitude must be between -90 and 90 and longitude between -180 and 180. You can type them in or use the Use my location button while standing at the spot.
On Android, scanning usually opens Google Maps or another maps app with a pin on the coordinates, ready for directions. iPhone support for geo: links is less consistent; depending on the iOS version and the scanner app, it may open Apple Maps or only show the coordinates. If most of your visitors use iPhones, a URL code with a Google Maps or Apple Maps share link can be the more reliable choice.
Coordinates point to a position, not a business listing. That is the advantage: they work for places without an address, like a side gate, a parking area or a meeting point in a park.
Where it helps
- A wedding invitation includes a code for the exact entrance of a venue that maps place on the wrong side of a large estate.
- A trailhead sign links to the coordinates of the parking area, useful when there is no street address.
- A delivery note for a warehouse points drivers to the correct loading dock rather than the main entrance.
- A festival map marks the first-aid tent or lost-and-found with codes for people who get turned around.
Tips before you print
- To get coordinates, long-press or right-click the spot in Google Maps and copy the two numbers shown.
- Five decimal places are precise to about one meter, which is plenty. Extra digits only add density.
- Check the sign of the numbers. Locations west of Greenwich have a negative longitude, and locations south of the equator have a negative latitude.
- Scan the code on an iPhone and an Android phone before printing, since map apps handle it differently.