Lay your phone flat or hold it on its side. Use the dial and bubbles to check the tilt and find level.
* iOS devices will show a permission prompt upon clicking
Understand the bubbles and your phone’s sensors for more reliable readings.
The level calculates tilt angles from the device orientation data supplied by your browser and shows them through the bubble positions. This orientation may be estimated using an accelerometer, a gyroscope and other sensors; the exact sources depend on your device and browser. The bubbles are simulated: there are no liquid-filled vials inside your phone. The 2D and 3D versions use the same angle calculations.
The central circular level shows tilt in two directions at once, making it useful when your phone is flat. Each edge vial shows tilt along one axis, useful for checking an edge or holding the phone on its side. A centered bubble means that axis is close to level; one centered vial does not mean the entire surface is level.
The table’s tilt, sensor error, a phone case or a protruding camera can all affect the reading. Your phone measures its own orientation, which may differ from the angle of the surface it rests on. Keep the phone steady against the surface and check whether any protrusions are lifting it.
Picking up, shaking or quickly moving your phone changes its orientation and may also temporarily affect the sensor estimates, causing the bubbles and angle readings to fluctuate. Let the phone settle before taking a reading for a more reliable result. The acceleration and G readings shown below are separate sensor information and are not used directly to calculate the level angles.
