🍋 QR & Barcode
QR Capacity Reference
chars
words
sentences
lines
Error Correction Level
Results
Result
About QR Capacity Reference
Explore QR code version capacities — see how many characters each version holds at every error correction level and encoding mode.
How It Works
Select an error correction level to see a complete capacity table across all 40 QR versions and 4 encoding modes. Includes module counts, data codewords, and practical size recommendations.
Frequently Asked Questions
What determines QR code capacity?
Three factors: version (1-40, controlling grid size from 21×21 to 177×177 modules), error correction level (L/M/Q/H), and encoding mode (numeric, alphanumeric, byte, or Kanji).
Which error correction level should I use?
Level L (7%) for clean digital displays, M (15%) for general use, Q (25%) for labels that may get dirty, H (30%) for codes with logos or heavy wear.