Altitude Checker

Press the button and allow location permission; GPS shows your current elevation above sea level in meters and feet.

Latitude and longitude are accurate, but altitude can have large errors depending on device and environment, sometimes tens of meters. Use it as a reference; precise elevation needs survey data.

Some devices and browsers do not provide altitude, especially indoors or where GPS is weak. Try again outdoors in an open area.

Checking your height while hiking, recording cycling rides, and as a reference for weather and pressure.