mph Speedometer with mph readings
Keep the main reading in mph while still seeing distance, pace, alerts, chart history, and trip summaries from the same GPS session.
For the best reading, start outdoors or near a window and keep the device where it can receive a stable GPS signal.
Common questions
These answers cover accuracy, privacy, installation, units, and the best way to use this page.
How accurate is mph Speedometer?
Accuracy depends on GPS signal quality, open sky, buildings, tunnels, device hardware, battery saving, and browser update frequency.
Do I need to install an app?
No. zigmaty runs in the browser. On supported phones you can also install it to the home screen for quicker access.
Is my precise GPS route uploaded?
No. Speed, distance, charts, alerts, and trip history are calculated locally in this browser.
When should I use mph Speedometer?
Use it when you want a quick GPS speed reading, a trip summary, or a second speed display from your phone.
Can I switch speed units?
Yes. You can switch between km/h, mph, m/s, and kn below the speed reading.