A GPS speedometer online — no app to install. Live speed in km/h, mph or knots, plus trip distance, all computed on your device.
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What is GPS Speedometer?
Turn any phone into a speedometer: this reads your device's GPS through the browser and shows your live speed on a big dial, in km/h, mph or knots. It also keeps a running trip — distance, moving time, average and top speed — that survives a reload. Your position never leaves the device: no account, no upload, no tracking.
speedometer.js
Live speed from GPS
This tool reads your device's location while it is open, so it can work out how fast you are moving.
Your position is used on this device only. Nothing is sent anywhere — the speed, distance and trip are all computed in your browser.
Laptops and desktops without GPS get a coarse Wi-Fi position, so the speed may sit at 0 and the trip may not add up. Phones and tablets report real GPS speed.
Waiting for GPS…
Units
Trip
Distance—
Moving time0:00
Avg moving—
Top speed—
Laptops and desktops without GPS get a coarse Wi-Fi position, so the speed may sit at 0 and the trip may not add up. Phones and tablets report real GPS speed.
Your position is used on this device only. Nothing is sent anywhere — the speed, distance and trip are all computed in your browser.
Location access denied
On iPhone: Settings → Privacy & Security → Location Services, then allow it for your browser. On Android and desktop: tap the padlock in the address bar, set Location to Allow, then reload.
No location support
This browser doesn't expose the Geolocation API, so there is no position to read. Try a current version of Safari, Chrome, Edge or Firefox.
Secure connection needed
Location only works over HTTPS. Open this tool on the live site (https://mentria.ai). A local dev server reached by LAN IP over plain HTTP cannot give a position.
