Choose a picture as the background, the background can be zoom in or out, as well as moved, and our protractor can measure directly on the picture. You can drag and drop a picture into the background.

Measure angles accurately with our free online protractor. Upload images, draw rays, get instant results. Export as PNG/CSV. No download or registration needed.

This is a protractor, it helps us measure angles (in degrees): Have a look at this animation (press the play button) to see how to make a neat...

Digital Angle Finder Protractor, 7inch 200mm Angle Gauge Professional Measuring Tool, Third Generation Adjustable Angle Ruler, Quick Display for Carpentry Construction and Home Improvement

Free online engineering protractor tool. Measure angles on images with precision. Features include angle locking, reference lines, specialized 180/360 modes, and privacy-first local processing. Ideal …

Easily measure angles using an interactive whiteboard angle simulator. Online protractor for angle problems with acute, obtuse, and reflex angles. Explore complementary, supplementary, and angles …

Use our free Protractor Online Ruler to measure angles directly on your screen. Perfect for students, teachers, and designers.

Free online protractor tool, no download required, supports web and mobile use. Easily measure any angle, suitable for students, teachers, designers and other users.

Free online protractor to measure angles from 0° to 360°. Drag to rotate, use mouse wheel, or enter angle directly. Works on desktop and mobile.

When using a protractor, notice that the outside set of numbers goes from 0 to 180 degrees where the 0 is on the left side of the protractor while the inner set goes from 180 to 0 degrees where 0 is on the …