GeolocationCoordinates: altitude property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2020.

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

The altitude read-only property of the GeolocationCoordinates interface is a double representing the altitude of the position in meters above the WGS84 ellipsoid (which defines the nominal sea level surface). This value is null if the implementation cannot provide this data.

Value

A double representing the altitude of the position in meters above the WGS84 ellipsoid.

Specifications

Specification
Geolocation
# altitude-and-altitudeaccuracy-attributes

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
altitude
Chrome – Full support
Chrome 5 (Release date: 2010-05-25)
footnote Full support
Edge – Full support
Edge 12 (Release date: 2015-07-29)
footnote Full support
Firefox – Full support
Firefox 3.5 (Release date: 2009-06-30)
footnote Full support
Opera – No support
Opera 10.6 – 12.1 (Release date: 2010-07-01)
footnote Removed in 15 and later
Opera – Full support
Opera 16 (Release date: 2013-08-27)
footnote Full support
Safari – Full support
Safari 5 (Release date: 2010-06-07)
footnote Full support
Chrome Android – Full support
Chrome Android 18 (Release date: 2012-06-27)
footnote Full support
Firefox for Android – Full support
Firefox for Android 4 (Release date: 2011-03-29)
footnote Full support
Opera Android – No support
Opera Android 11 – 12.1 (Release date: 2011-03-22)
footnote Removed in 14 and later
Opera Android – Full support
Opera Android 16 (Release date: 2013-09-18)
footnote Full support
Safari on iOS – Full support
Safari on iOS 3 (Release date: 2009-06-17)
footnote Full support
Samsung Internet – Full support
Samsung Internet 1 (Release date: 2013-04-27)
footnote Full support
WebView Android – Full support
WebView Android 4.4 (Release date: 2013-12-09)
footnote Full support
WebView on iOS – Full support
WebView on iOS 3 (Release date: 2009-06-17)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Has more compatibility info.

See also