Версия QR-кода 18 (89×89)
QR version 18 is 89×89 modules: up to 1,725 digits, 1,046 alphanumeric, 718 bytes or 442 kanji at level L; 310 bytes at H.
Version 18 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 | Числовой | Буквенно-цифровой | Байтовый | Кандзи |
|---|---|---|---|---|---|
| L | ~7% | 1 725 | 1 046 | 718 | 442 |
| M | ~15% | 1 346 | 816 | 560 | 345 |
| Q | ~25% | 948 | 574 | 394 | 243 |
| H | ~30% | 746 | 452 | 310 | 191 |
Codewords and error-correction blocks
The symbol carries 901 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 | 721 | 180 | 5 × (150, 120, 30) + 1 × (151, 121, 30) |
| M | 563 | 338 | 9 × (69, 43, 26) + 4 × (70, 44, 26) |
| Q | 397 | 504 | 17 × (50, 22, 28) + 1 × (51, 23, 28) |
| H | 313 | 588 | 2 × (42, 14, 28) + 19 × (43, 15, 28) |
Symbol structure
- Модули
- 89 × 89
- Data modules (codeword bits + remainder bits)
- 7 211
- Remainder bits
- 3
- Alignment patterns
- 13 (centre rows/columns 6, 30, 56, 82)
- Version information blocks
- Yes (2 × 18 bits)