Mobile GPS Scan

Location Accuracy Test

Check your phone's browser location precision, GPS accuracy radius, altitude, speed, and heading. Your location is read in your browser only and is not stored by this page.

Tap Start to request location

How to Check GPS Accuracy

Open this page on your phone, tap Start GPS Scan, and allow location access. Wait several seconds for the accuracy radius to settle. Outdoors near a clear sky, modern phones often report much better accuracy than they do indoors or near tall buildings.

The accuracy value is a radius in meters. A smaller radius means the browser is more confident about your location. If the radius stays very large, try moving near a window, turning off battery saver, or checking whether precise location is enabled for your browser.

Privacy and Browser Limits

This page displays geolocation values in your browser. The tool does not need an account and does not save your coordinates in page storage. Your browser and operating system still control permission prompts, precision settings, and whether approximate location is used.

Some fields may be unavailable. Altitude, speed, and heading depend on the device, sensor fusion, movement, and browser support. A dash means the browser did not provide that value for the current reading.

FAQ

GPS Accuracy Test — Frequently Asked Questions

Why is my location inaccurate?

Browser geolocation combines GPS, Wi-Fi, and cell-tower data. Indoors or without a GPS lock it falls back to Wi-Fi and cell positioning, which is far less precise and produces a larger accuracy radius. Outdoors with a clear sky, GPS can reach roughly 5 metres.

What does the accuracy radius mean?

It's the radius, in metres, of a circle your true position is likely within. Smaller is better: a 5 m radius is excellent GPS, while several hundred metres means the location came from Wi-Fi or cell data rather than satellites.

Why does it ask for permission?

Browsers require your explicit permission before any site can read your location, for privacy. This tool reads the coordinates only in your browser to display them — nothing is stored or sent anywhere.

How do I improve GPS accuracy?

Go outside with a clear view of the sky, enable high-accuracy or precise-location mode in your device settings, disable battery-saver, and wait a few seconds for the GPS to lock. Moving away from tall buildings also helps.