Screen Protractor (Protractor.exe). The Screen Protractor allows you to easily and quickly measure any angle on the screen to the nearest Degree or Radian.

Precise onscreen angle measurement with a floating digital protractor

Measure any angle directly on your screen with a floating screen angle measurement tool. This digital protractor for PC works above all windows and supports eight angle units including radians and degrees. Enjoy adjustable transparency and a fully skinnable interface for a custom look that fits your workflow.

Perfect for engineering, design, cartography, education, and microscopy — this onscreen geometry measurement software helps you work faster and more accurately. Quickly capture bearings on maps, analyze photos, or assist students with degrees and radians in real time. Measure to the nearest degree with keyboard precision and reliable tools that remain visible anywhere.

Download the feature-limited trial and evaluate as long as you need. Unlock the full 360° range and advanced customization in the complete version. Designed for professionals who need accurate angles onscreen, every time.

• Easily measure any angle on the screen
• Keyboard controls for precise digital measurement
• Measure in Degrees, Radians, Revolutions, Grads, Mils, Minutes, Seconds, and Bearings
• Adjust transparency to clearly view what you’re measuring underneath
• 30-day money-back guarantee

The Units menu offers quick selection of predefined units — and you can also configure your own Custom Units via the “Configure Units” option. Set scale, rename the unit, and choose a zero point for easy relative angle calculations.

The Protractor features a fully skinnable interface — download new skins to match aesthetic or technical preferences. Whether you're reviewing blueprints, analyzing crime scene photos, or learning geometry, Screen Protractor delivers the accurate solution at any angle.

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