Measurement Field
Place physical objects directly on screen, drag calipers, or tap rulers to drop guides.
Measurement Field
Place physical objects directly on screen, drag calipers, or tap rulers to drop guides.
Align on-screen pixels to true physical metric and imperial units.
Auto-detection inspects screen dimensions, device pixel ratio (DPR), and known hardware tables. Proceed to step 2 to verify with a physical coin or credit card.
Hold a real-world object against the outline on your screen. If the physical edges align with the screen outline, your calibration is 100% physically accurate.
Place any standard bank card, driver license, or transit card over this outline.
Add a responsive on-screen ruler to your website or web app.
Select your preferred display language
