Free print planning tool
QR code size calculator.
Estimate a conservative starting size for a QR code on packaging, signs, exhibits, memorial plaques, product displays, and other real-world surfaces. Then test the final print where people will actually scan it.
Practical starting size
For a 300 DPI print file, budget roughly 750 × 750 pixels for the QR symbol area. Keep the required quiet zone clear around the code.
How the estimate works
The calculator starts with a roughly 10:1 scan-distance-to-code-size relationship and increases the recommendation when lighting, glare, or viewing angle makes scanning harder. It also enforces a practical close-range minimum.
That is a planning heuristic, not a standards guarantee. QR version, encoded data, error correction, printing process, surface curvature, camera quality, and physical damage all change real performance.
The test that matters
Export the exact production code, print it at the proposed size, and place it on the real material. Test from the expected approach angle and distance in realistic light with several phones.
For outdoor signs, test after lamination or protective coating. For packaging, test on the finished curve, seam, foil, glass, or plastic—not a flat office-paper proof.
QR print checklist
Frequently asked questions
What size should a printed QR code be?
There is no universal size. It depends on scan distance, data density, contrast, print quality, lighting, angle, and the phone camera. Use the calculator as a practical starting point and test the final physical print.
How far away can someone scan a QR code?
Larger, high-contrast codes can be scanned from farther away, but real performance varies. Design for the actual place a person will stand rather than the theoretical maximum distance.
Does a QR code need white space around it?
Yes. QR codes require a clear quiet zone around the symbol. Do not let text, borders, images, or packaging graphics crowd directly against the code.
Should I test a QR code before a large print run?
Absolutely. Test the final exported code at production size, on the real substrate and finish, under realistic lighting, with multiple iPhone and Android devices.
After the scan
A scannable code is only the beginning.
ThingCore turns the destination into an AI identity people can talk to by voice or text—with owner-approved knowledge, personality, lead capture, alerts, and useful actions.