Phiên bản mã QR 27 (125×125)
QR version 27 is 125×125 modules: up to 3,517 digits, 2,132 alphanumeric, 1,465 bytes or 902 kanji at level L; 625 bytes at H.
Version 27 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 | Số | Chữ và số | Byte | Kanji |
|---|---|---|---|---|---|
| L | ~7% | 3517 | 2132 | 1465 | 902 |
| M | ~15% | 2701 | 1637 | 1125 | 692 |
| Q | ~25% | 1933 | 1172 | 805 | 496 |
| H | ~30% | 1501 | 910 | 625 | 385 |
Codewords and error-correction blocks
The symbol carries 1828 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 | 1468 | 360 | 8 × (152, 122, 30) + 4 × (153, 123, 30) |
| M | 1128 | 700 | 22 × (73, 45, 28) + 3 × (74, 46, 28) |
| Q | 808 | 1020 | 8 × (53, 23, 30) + 26 × (54, 24, 30) |
| H | 628 | 1200 | 12 × (45, 15, 30) + 28 × (46, 16, 30) |
Symbol structure
- Mô-đun
- 125 × 125
- Data modules (codeword bits + remainder bits)
- 14628
- Remainder bits
- 4
- Alignment patterns
- 22 (centre rows/columns 6, 34, 62, 90, 118)
- Version information blocks
- Yes (2 × 18 bits)