On-Screen Measurement for Engineering and CAD
Measure angles and distances on digital blueprints, site plans, and PDF drawings.

Precision on every plan
When you receive plans as flat files instead of live CAD models, you need a way to verify measurements without re-drawing. Screen Calipers and Screen Protractor act as a "digital straight edge" for your desktop.
Use Cases
- Audit Blueprints: Verify dimensions and angles on scanned site plans and architectural PDFs.
- Site Estimations: Quickly measure roof pitches, miter angles, and distances for material estimates.
- Scale Calibration: Calibrate to any map or blueprint scale bar for real-world unit measurements.
- Logger Integration: Use our free Logger to export dozens of measurements directly to your spreadsheets or estimation software.
The Engineering Pack
Screen Protractor
Measure any angle on screen with pixel accuracy. Essential for verifying slopes and pitches.
View Protractor →Screen Calipers
The industry standard for on-screen linear measurement. Calibrate to any scale.
View Calipers →Try Screen Protractor
Download the free trial for Windows 10 and 11, or buy a license.