Guides
Protractor guides
Everything you need to print a protractor at the correct size and read it correctly. Short, practical, and accurate.
01
How to print a protractor to scale
How to print a protractor to scale: set page scaling to 100 percent, turn off fit to page, then measure the calibration bar to confirm the size.
Read the guide 02How to use a protractor
How to use a protractor step by step: line up the center on the vertex, set the baseline along one arm, and read where the other arm crosses the scale.
Read the guide 03Reading the inner and outer scale
A protractor has two scales, inner and outer, running opposite ways. Here is how to tell which one to read so you never confuse a 60 degree angle for 120.
Read the guide 04Protractor PDF versus a printout
A protractor PDF holds its exact size; a screenshot does not. Why the PDF format keeps the scale, and what to check before you print one to use.
Read the guide