Free Tool

QR Code Size Calculator

Calculate the perfect QR code size for any scanning distance. Get minimum and recommended dimensions for reliable scanning on business cards, posters, packaging, and signage.

Calculate Your Size
ft

The expected distance between the QR code and the scanner

Higher error correction requires slightly larger QR codes but provides better damage resistance

Minimum Size

13in

13 × 13 in

Absolute minimum for scanning at this distance

Recommended Size

18in

18 × 18 in

Optimal size for reliable scanning

Size Comparison

About the size of a laptop screen

Your recommended QR code is approximately 46 cm

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Ready to create your perfectly-sized QR code?