Digital Level
Common Angles Reference
| Angle | Application | Notes |
|---|---|---|
| 0° | Perfectly level surface | Tables, floors, shelves |
| 1-2° | Drainage slope | Patios, driveways, gutters |
| 15° | Wheelchair ramp (max) | ADA compliance |
| 30° | Roof pitch (6:12) | Common residential roof |
| 45° | Standard stair angle | Comfortable climbing |
| 90° | Vertical/plumb | Walls, posts, door frames |
How to Use This Level
Surface Level Mode
Place your phone flat on a surface (screen up). The bubble shows if the surface is level. When the bubble is centered in the green ring, the surface is level.
Edge Mode
Hold your phone on its edge against a surface (like holding a book). This mode measures the angle of slopes, ramps, or inclines. Great for checking roof pitch or stair angles.
Calibration
If readings seem off, use Calibrate Zero to set the current position as level. This compensates for phone cases or sensor drift. Use Reset to restore factory calibration.
Tips for Accuracy
- Remove phone cases for most accurate readings
- Keep phone still while measuring
- Calibrate on a known level surface
- Avoid measuring near magnets or electronics
About This Tool
This digital level uses your device's accelerometer and gyroscope to measure orientation. While convenient, phone levels are typically accurate to ±0.5° under ideal conditions. For precision work, always verify with a quality physical level.
Privacy: All sensor data is processed locally in your browser. No measurements are stored or transmitted.
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Phone Level & Inclinometer FAQ
What is Phone Level & Inclinometer?
Phone Level & Inclinometer is a free utility & everyday tool that helps you Use your phone as a digital spirit level and angle meter.
How do I use Phone Level & Inclinometer?
Enter your input values, review the calculated output, and adjust inputs until you reach the result you need. The result updates in your browser.
Is Phone Level & Inclinometer private?
Yes. Calculations run locally in your browser. Inputs are not uploaded to a server by default, and refreshing the page clears session data.
Does Phone Level & Inclinometer require an account or installation?
No. You can use this tool directly in your browser without sign-up or software installation.
How accurate are results from Phone Level & Inclinometer?
This tool applies standard formulas or deterministic processing logic for estimates. For medical, legal, tax, or investment decisions, verify with a qualified professional.
Can I save or share outputs from Phone Level & Inclinometer?
You can bookmark this page and copy outputs manually. Results are not persisted in your account and are typically not embedded in the URL.