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Step 2 of 2

Device & Blueprint Calibrator.

Calibrate your screen's physical PPI using a standard credit card. This lets you auto-detect display sizes and measure layout blueprints to scale.

1. Credit Card Calibration

Standard ID-1 Format

Lay any physical credit card, debit card, or ID card flat against your screen. Adjust the slider until the outline below matches the physical card's edges exactly.

Adjust Width 300 px

2. Interactive Blueprint & Blueprint Scale Tool

Place your blueprint or room drawing over the screen (or use this screen scale to calculate distances). Set your blueprint ratio below:

Feet
Current PPI Calibration: -- ppi
Ruler Scale Pad (Tap any 2 spots to measure distance)
Click/Tap in two separate positions on this canvas to trace a line and calculate its physical and real-world distance.
Physical Screen Distance -- inches
Blueprint Scaled Distance -- feet

Diagnostics

Estimated Screen Diagonal Calculated in real-time
Device System parameters
Device Type: --
Device Pixel Ratio: --
Screen Resolution: --
Viewport Size: --
PPI Scale: --
Touch Enabled: --
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