GPS Speedometer

This free GPS speedometer turns your phone, tablet or laptop into a live speed display using the device's built-in GPS. Press Start, allow location access, and it reads your real ground speed straight from the satellites — no app install and no account.

Alongside the analog dial and large digital readout you get your top speed, running average, trip distance, current altitude, compass heading and live GPS accuracy. Switch freely between km/h, mph, knots and m/s. Set an optional speed limit and the dial turns red with an alert the moment you cross it. Turn on HUD mode to mirror the display for a head-up reflection on your windshield at night, and the screen stays awake while you drive on supported devices.

GPS speed is most accurate outdoors with a clear view of the sky and can take a few seconds to settle after you start moving. Accuracy drops indoors, in tunnels or between tall buildings. Use it as a handy reference, not a replacement for your vehicle's certified speedometer.