Before you print
How big should it be?
Rule of thumb: printed width ≥ scanning distance ÷ 10. Pick the surface above and the studio sizes the code for you, then checks the printed module size against what a press can actually hold.
Questions people actually ask
In Google Maps, right-click the exact spot and click the coordinates at the top of the menu to copy them. Paste them here — first number is latitude, second is longitude.
The code uses the standard geo: format, so each phone opens its own default — Apple Maps on iPhone, Google Maps on most Androids. The pin is identical either way.
Coordinates point at the exact spot — a trailhead, a parking entrance, a market stall — where a street address can be ambiguous or missing entirely. Six decimal places is about 10 cm of precision.
Neither. The coordinates are encoded directly in the code, generated in your browser, free forever with no signup. Nothing passes through UseQR when someone scans.
Want the detail? How location QR codes work — the payload format, what scanners do with it, and where it breaks.