Online Bubble Level Tool (Spirit Level)
Turn your phone into a handy bubble level! This tool checks if a surface is perfectly level (horizontal) or plumb (vertical) using your device's built-in sensors. It's perfect for hanging pictures, setting up shelves, or any DIY project.
How to Use the Bubble Level?
- Allow Sensor Access: When your browser asks for permission to access "Motion & Orientation," please allow it. The tool needs this to work.
- Calibrate for Accuracy: For the best results, first place your device on a surface you know is perfectly level. Then, tap the 'Calibrate Level' button. This sets the current position as your 'zero' point.
- Check Your Surface: Place your phone on any object you want to measure. The bubbles will move to show you the angle of the surface.
Understanding the Display
The tool provides three different level indicators:
- Horizontal Level: This long level at the top shows the side-to-side tilt. The surface is perfectly level when the bubble is in the center.
- Vertical Level: This level on the left shows the front-to-back tilt. It's ideal for checking if walls or posts are perfectly upright (plumb).
- Bull-Eye Level: This circular level shows the surface angle in all directions at once. It's great for leveling flat surfaces like tables. The goal is to get the bubble inside the center circle.
How Does It Work?
This digital spirit level uses your phone's internal sensors (the accelerometer and gyroscope) to detect its orientation relative to gravity. The app then visually represents this data with the bubbles on your screen, just like a real bubble level.