Screen Calipers - Version 4.0 The Screen Calipers are the unique on-screen measurement tool, that let you measure anything on your computer screen with ultimate accuracy.The Screen Calipers floats above any other application so you can measure anything on your screen:- HTML webpage layout- Graphic design illustration and layout- Digital photo adjusting and resizing- Hobbies and Crafts including sewing and model building- Educational projects for physics and shop class- Computer Aided Design with engineering blueprints and architectural plans- Medical measurement for electrocardiograms and X-RaysYou may download the feature limited trial, and evaluate the Screen Calipers for as long as you need to.