Web/API/GeolocationCoordinates/speed

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

The GeolocationCoordinates.speed read-only property is a double representing the velocity of the device in meters per second. This value is null if the implementation is not able to measure it.

Syntax

let speed = geolocationCoordinatesInstance.speed

Value

A double representing the velocity of the device in meters per second.

Specifications

Specification	Status	Comment
Geolocation APIThe definition of 'GeolocationCoordinates.speed' in that specification.	Recommendation	Initial specification.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
speed	Chrome Full support 5	Edge Full support 12	Firefox Full support 3.5	IE Full support 9	Opera Full support 16 Full support 16 No support 10.6 — 15	Safari Full support 5	WebView Android Full support 37	Chrome Android Full support 18	Firefox Android Full support 4	Opera Android Full support 16 Full support 16 No support 11 — 14	Safari iOS ?	Samsung Internet Android Full support 1.0

Legend

Full support  

Full support

Compatibility unknown  

Compatibility unknown

See also

• Using the Geolocation API
• GeolocationCoordinates

GeolocationCoordinates.speed by Mozilla Contributors is licensed under CC-BY-SA 2.5.