QR-Code-Version 23 (109×109)
QR version 23 is 109×109 modules: up to 2,620 digits, 1,588 alphanumeric, 1,091 bytes or 672 kanji at level L; 461 bytes at H.
Version 23 data capacity
Maximum characters in a single encoding mode, per error-correction level (ISO/IEC 18004:2015, Table 7). Mixed-mode data and ECI headers reduce these limits.
| EC level | Recovers | Numerisch | Alphanumerisch | Byte | Kanji |
|---|---|---|---|---|---|
| L | ~7% | 2.620 | 1.588 | 1.091 | 672 |
| M | ~15% | 2.059 | 1.248 | 857 | 528 |
| Q | ~25% | 1.468 | 890 | 611 | 376 |
| H | ~30% | 1.108 | 672 | 461 | 284 |
Codewords and error-correction blocks
The symbol carries 1364 codewords in total, split between data and Reed-Solomon error correction (ISO/IEC 18004:2015, Table 9).
| EC level | Data codewords | EC codewords | Blocks (count × total, data, EC codewords) |
|---|---|---|---|
| L | 1.094 | 270 | 4 × (151, 121, 30) + 5 × (152, 122, 30) |
| M | 860 | 504 | 4 × (75, 47, 28) + 14 × (76, 48, 28) |
| Q | 614 | 750 | 11 × (54, 24, 30) + 14 × (55, 25, 30) |
| H | 464 | 900 | 16 × (45, 15, 30) + 14 × (46, 16, 30) |
Symbol structure
- Module
- 109 × 109
- Data modules (codeword bits + remainder bits)
- 10.916
- Remainder bits
- 4
- Alignment patterns
- 22 (centre rows/columns 6, 30, 54, 78, 102)
- Version information blocks
- Yes (2 × 18 bits)