QR Code Error Correction Calculator

Choose a QR error-correction level to review its approximate recovery tolerance and practical design tradeoff.

Error correction level

Approximate recovery tolerance

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QR print-to-scan cluster

Generate the payload, then proof the actual symbol geometry

A valid payload is only one layer. Compare the rendered QR's module count, raster detail and intended physical size before you commit to print, labels or distribution.

Scan a QR Plan print size Check quiet zone

All 21 QR tools

Text QRPlain-text payload and physical proof geometry Logo QRBranded symbol geometry and final-artwork proof Wi-Fi QRCredential payload and physical proof geometry Bulk QRBatch sample geometry and export proof Location QRCoordinate payload and field-use proof vCard QRContact payload and print proof QR LabelsSheet sample geometry and print proof WhatsApp QRwa.me payload and distribution proof

Standards and assignment boundary

Use the exact symbology required by the receiving system. WebToolArc can validate supported syntax and check digits, but it does not allocate GS1 identifiers, certify regulated documents, or guarantee acceptance by a particular scanner, retailer, carrier, or institution.

Compare L, M, Q, and H

Review the commonly cited approximate recovery tolerance for each QR error-correction level and the practical tradeoff between resilience and capacity.

Percentages are approximate guidance

Error correction is implemented with Reed–Solomon codewords and real damage tolerance depends on symbol version, damage pattern, encoding, and scanner behavior. Higher correction also reduces available payload capacity.

Error correction vs capacity

L, M, Q, and H trade payload capacity for redundancy. The commonly cited recovery percentages are approximate; this page also compares the actual version/module growth for one sample payload.