Digital Level
March 2026
How to Turn Your Smartphone Into a Spirit Level for DIY Home Projects
Try it now:
Open the Free Digital Spirit Level →How Does a Smartphone Spirit Level Work?
Smartphones contain a MEMS accelerometer that measures gravitational force on three axes. Our digital level reads these sensor values continuously and displays a visual bubble indicator plus angle readings — exactly like a physical level but often with greater precision.
Step-by-Step Guide
- Open on your phone — works in Chrome, Safari, and Firefox
- Grant sensor permission — iOS 13+ asks; Android grants automatically
- Calibrate on a known flat surface — tap Calibrate to zero sensor offset
- Place phone on the surface — flat for horizontal, upright for vertical
- Read the angle — 0.0° on both axes = perfectly level
5 DIY Projects Where This Saves Time
- Hanging picture frames and shelves — confirm level before finalising screws
- Mounting a TV or monitor — even 0.5° tilt is visible on a large screen
- Laying floor tiles — check surface is flat before adhesive sets
- Setting up appliances — washing machines must be level to run quietly
- Checking fence posts — hold phone upright against post to check plumb
How Accurate Is It?
Most smartphones achieve ±0.5° accuracy. Sufficient for all standard DIY tasks, photography tripod checks, and basic construction. For precision engineering or structural surveys, a certified optical or laser level is required.
Frequently Asked Questions
No readings on iPhone?
Settings → Safari → Motion & Orientation Access → On. Or tap Allow when prompted by the tool.
Reading not 0° on a flat surface?
Tap the Calibrate button. Also remove any warped phone case before measuring.
Ready to try it?
Open Digital Spirit Level →