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Live GPS speed in km/h or mph — no app needed
Tap “Start speedometer” and allow location. Best on a phone, outdoors — nothing is uploaded, GPS is read only in your browser.
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Browse Productivity KitsA GPS speedometer that runs in your browser — no app install, no signup. Start it on a phone, allow location, and it shows your live speed in km/h or mph along with your maximum and average for the session. It reads GPS speed directly on-device; nothing is uploaded.
The tool calls the browser Geolocation API’s watchPosition with high accuracy enabled. Each update includes a speed field in metres per second derived from GPS. The tool clamps negatives to zero, converts to your chosen unit (×3.6 for km/h, ×2.23694 for mph) and updates the dial, the max, and a running average of all samples.
Speed is only defined while you are moving on hardware with a real GPS sensor. When the browser returns a null speed — common indoors or on desktops that locate you by Wi-Fi — the tool shows a clear “no speed yet” hint instead of a wrong number. If you deny permission or the device lacks geolocation, it explains what to do rather than failing silently.
Pressing Stop clears the GPS watch so it no longer uses battery.
A cyclist checking pace on a ride without a dedicated bike computer.
A runner glancing at current and average speed during outdoor intervals.
A passenger curious about the vehicle’s speed as a quick cross-check.
Anyone testing whether their phone’s GPS reports movement correctly.
Scope note: Accuracy depends entirely on your device’s GPS and sky visibility — expect a few km/h of error and a short delay after starting. Desktops and tablets without GPS usually cannot report speed at all. This is not a certified or legal speed measurement; never rely on it in place of your vehicle’s speedometer.
Open this page on your phone (GPS is required for speed)
Tap “Start speedometer” and allow location access
Move outdoors — your live speed shows in km/h or mph
Switch units any time; track your max and average speed
About the Online Speedometer
It uses your device’s GPS through the browser Geolocation API. GPS reports a speed value (metres per second) as your position changes, which the tool converts to km/h or mph. No app or internet upload is needed.
GPS speed only appears when you are actually moving, outdoors, on a device with a GPS chip — usually a phone. Desktops and laptops estimate location from Wi-Fi and generally can’t report speed.
GPS speed is typically within a few km/h and is fine for cycling, running or a rough driving check. It is not a legal or certified speed measurement — use your vehicle’s speedometer for that.
Yes. Location is read only in your browser to compute speed and is never sent to any server or stored.
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