Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The Coordinates.altitude read-only property is a double representing the altitude of the position in meters, relative to sea level. This value is null if the implementation cannot provide this data.


alt = coordinates.altitude


Specification Status Comment
Geolocation API
The definition of 'Coordinates.altitude' in that specification.
Recommendation Initial definition

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 5 (Yes) 3.5 (1.9.1) 9 10.60
Removed in 15.0
Reintroduced in 16.0
Secure context-only 47 ? 55 (55) No support (Yes) (Yes)
Feature Android Chrome for Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? (Yes) 4.0 (4) ? 10.60 ?
Secure context-only No support 47 ? 55 (55) No support (Yes) (Yes)

See also

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, erikadoyle, Sebastianz, fscholz, tregagnon, teoli
 Last updated by: chrisdavidmills,