Calibrar
Web browsers measure in pixels, not millimeters. Complete one of the calibration methods below to achieve true 1:1 physical scale on any device.
Payment Card Match
Place any standard debit/credit card, ID, or driver’s license (85.60 × 53.98 mm) on screen and adjust the slider until the outline matches.
Screen Diagonal
Enter your laptop or monitor screen diagonal in inches (e.g. 13.3", 14", 15.6", 24", 27") to calculate exact hardware PPI.
Predefined Devices
Choose from 220+ factory presets for iPhone, iPad, Samsung Galaxy, Pixel, MacBook, and monitors for instant calibration.