Protractor Printable
Protractor printable in PDF, ready for US Letter. Free download for home, classroom, or planning use.
A printable protractor gives you a real angle-measuring tool on paper when you do not have a physical one on hand. The PDF on this page is a 180-degree semicircular scale marked in single-degree increments, with longer ticks every 5 and 10 degrees.
What is on the page
The protractor spans a full 180 degrees, labeled at every 10-degree mark, with a small centre point to align against the vertex of the angle you are measuring.
How to use it
Align the centre point of the protractor with the vertex of the angle. Line up the 0-degree mark with one ray of the angle, then read the degree value where the second ray crosses the scale.
Printing tips
Print at 100 percent scale, this is a measuring tool, so accuracy depends on it. Before relying on it for real work, hold it up against a physical ruler or protractor to confirm your printer did not rescale the page.
Frequently asked questions
Is the printed protractor accurate?
It should be at 100 percent print scale, but always verify against a real protractor or ruler first, since printer scaling varies by device.
What angle range does it cover?
0 to 180 degrees, which covers standard angle measurement for geometry homework and drafting.