The Coordinates.altitudeAccuracy read-only property is a strictly positive double representing the accuracy, with a 95% confidence level, of the altitude expressed in meters. This value is null if the implementation doesn't support measuring altitude.


altAcc = coordinates.altitudeAccuracy


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

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 5 (Yes) 3.5 (1.9.1) 9 10.60
No support 15.0
Feature Android Chrome for Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? (Yes) 4.0 (4) ? 10.60 ?

See also

Document Tags and Contributors

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