Protractor Angle Meter

Protractor Angle Meter turns your smartphone into a precise angle measurement tool. Whether you need a digital protractor, inclinometer, or spirit level, this app covers it all.

Two Measurement Modes

Sensor Mode

Place your phone on any surface and the built-in accelerometer measures the tilt angle in real time. The circular protractor dial shows a rotating needle with degree markings from 0 to 360. A color indicator turns green when the surface is perfectly level, making it useful as a spirit level for carpentry, construction, and DIY projects.

Touch Mode

Drag two lines on the screen to measure any angle manually. The protractor displays the result instantly. Ideal for measuring angles on photos, drawings, blueprints, or any flat reference you place under your phone.

Key Features

- Real-time angle measurement using accelerometer sensor

- Full 360-degree circular protractor display

- Touch-based angle measurement with two draggable lines

- Freeze function to lock the current reading

- Degree and Radian unit switching

- Level detection with visual feedback

- Clean, dark-themed interface for easy reading

- Supports 20 languages

Perfect For

- Woodworking and carpentry projects

- Construction and building work

- DIY home improvement

- Geometry and math homework

- Engineering and drafting

- Checking surface level and slope

Simple, accurate, and free. Download Protractor Angle Meter and measure any angle with your phone.