Protractor
Measure an angle on your screen, or hold your phone against a wall or a rafter.
45°Drag the yellow arm
How to use it
- 1Put the corner you are measuring on the dot.
- 2Drag the yellow arm along the second edge.
- 3Read the angle. Switch to Against a wall on a phone.
This page, or the app?
| This page | Tapepal on iPhone | |
|---|---|---|
| Size | What fits on your screen | Anything you can hold your phone to |
| Reading | Drag the arm | Read it from the level |
| Saved | No | Saved with the photo |
Questions
Can I measure a roof angle?
Yes, from a rafter in the attic, with Against a wall on your phone. Or use the roof pitch tool.
How accurate is it?
To about one degree on screen.
What is a right angle?
90°. Two edges at 90° are square.
