Can I print a protractor?

Yes. Use the Export PNG feature, then print the exported image. You can also use your browser’s print dialog to create a printable protractor.

What is a digital protractor?

A digital protractor is a software-based protractor that measures angles on screen. It provides precise readouts, grid overlays, snapping, and export features.

How do I measure angles without a physical protractor?

Use the online protractor: load or paste your diagram, position the points over the rays and vertex, and read the angle immediately.

Does this tool work in degrees and radians?

Yes. You can switch between degrees and radians at any time, and the in-canvas label updates immediately.

Is there snapping for cleaner angles?

Yes. Enable the “Snap 5°” option to constrain measurements to multiples of 5 degrees for tidy construction lines or worksheets.

Can I use it with a compass or ruler?

Yes. Combine the online protractor with a ruler or compass (digital or physical). You can position points on drawn arcs or line segments to measure the angle formed.

Can students use this for angle worksheets?

Yes. Students can load a worksheet image or screenshot, measure each angle with the draggable points, snap for round values, and export their answers.

Online Protractor

Measure the angle between two lines by dragging the three points. Switch between degrees and radians, enable 5° snap for clean readings, and export a PNG that includes the on-canvas angle label. You can also load a background image, move the whole protractor, and print a protractor printable directly from your browser.

Snap 5°

Radians

Grid

Move all

Opacity

Stroke

Arms

Arc

Vertex

Grid

156.50°

Drop or paste an image. Hold Space (or middle mouse) to pan. Use Ctrl/Cmd + wheel to zoom. Drag the three points to measure. Toggle Move all to reposition the whole protractor.

Free Online Protractor — Digital Angle Measurement Tool

This digital protractor tool lets you measure angles precisely on screen. It supports degrees and radians, works with screenshots, diagrams, or photos, and includes a grid overlay, move-all handle, snap to 5° option, and export for documentation or printing. Whether you searched for online protractor, protractor app, protractor ruler, or protractor PNG, this tool is designed for accuracy and speed.

How to use a protractor (online)

Open the tool and, if needed, Open image to load a diagram or screenshot.
Drag the three points (A–B–C). Keep B on the vertex; place A and C on the two rays.
The angle label appears between the rays and updates live in degrees (or radians if toggled).
Enable Snap 5° for neat values; use the grid for alignment; use Move all to reposition the entire protractor.
Click Export PNG to download a clean image with the angle arc and label—perfect for reports, lessons, and measuring angles with a protractor worksheet.

Popular use cases

Education: measuring angles with a protractor, how to use protractor, and how to measure angles without a protractor (by overlaying on images of geometry constructions).
Design/Engineering: check angles on UI mockups, CAD exports, and technical drawings using a digital protractor.
Printables: export a protractor printable or protractor image for handouts and worksheets; combine with a compass to build a compass and protractor exercise.
On-screen measuring: use the protractor app directly in the browser; no installation.

Printable protractor (PNG & print)

Need a printable protractor? Use Export PNG and print at 100% scale in your browser’s print dialog. The exported image includes the protractor arc, the three points, and the in-canvas angle label, making it ideal for lessons, labs, and documentation.

FAQs: protractor, compass & online measuring

What is a protractor?

A protractor is a tool for measuring or drawing angles. Our online protractor provides the same functionality digitally with adjustable points, a grid, snapping, and export options.

How to use a protractor online?

Load (or skip) an image, then drag the three points so B is the vertex and A/C lie on each ray. Read the live angle in degrees or radians. Toggle Snap 5° for clean values, and use Export PNG to save.

Can I measure angles with a worksheet?

Yes. Import a worksheet screenshot and measure each problem using the draggable points. This is great for measuring angles with a protractor worksheet tasks.

What about compass and protractor activities?

You can combine this protractor tool with a drawing app or physical compass to construct arcs, then measure them accurately using the online protractor overlay.

Is there a downloadable protractor PNG?

Yes—use Export PNG. You’ll get a clean protractor png that includes your current angle arc and label for printing or documentation.