Disclaimer

The speed shown on this site is derived from consumer-grade GPS hardware in your phone. It is not a calibrated, legal-for-trade instrument. Do not use it for navigation safety, traffic enforcement disputes, vehicle testing, or any situation that requires certified speed measurement.

GPS accuracy depends on satellite visibility, atmospheric conditions, multipath interference, and your device's hardware. Readings can be off by several km/h in difficult environments such as tunnels, urban canyons, dense forests, and underground stations.

If you are the driver of any vehicle, do not interact with this site while the vehicle is moving. Bus Speed Test is intended for passengers. Always follow your local laws about phone use behind the wheel.

The site is provided "as is" without any warranty of fitness for a particular purpose. The authors and operators of Bus Speed Test are not liable for any loss, damage, or inconvenience arising from your use of the readings.

GPS uses real device power. Long sessions will drain your battery faster than normal browsing. The site itself uses minimal mobile data once loaded, but your carrier may apply standard data charges.