QR Code Version 30 Capacity and Size (137×137)
A version 30 QR code is 137 modules per side, or 145 modules including the 4-module quiet zone. At error correction M it holds up to 1,994 alphanumeric characters or 1,370 bytes.
Maximum characters by error correction level
| L | M | Q | H | |
|---|---|---|---|---|
| Numeric | 4,158 | 3,289 | 2,358 | 1,782 |
| Alphanumeric | 2,520 | 1,994 | 1,429 | 1,080 |
| Byte | 1,732 | 1,370 | 982 | 742 |
| Kanji | 1,066 | 843 | 604 | 457 |
The byte row counts bytes. Japanese or Chinese text in UTF-8 takes 3 bytes per character. The kanji row counts characters encoded in kanji mode (Shift_JIS). This site's generator encodes text in byte mode (UTF-8), so treat the kanji row as the limit set by the standard.
Print size guidelines
Side length for each module size. The farther the scanning distance, the larger the modules should be.
| Module | Code only | With quiet zone |
|---|---|---|
| 0.5 mm | 68.5 mm | 72.5 mm |
| 0.75 mm | 102.75 mm | 108.75 mm |
| 1 mm | 137 mm | 145 mm |
Data that fits in this version
Whether each example fits (Yes / No) at each error correction level, estimated in byte mode.
| Data | L | M | Q | H |
|---|---|---|---|---|
| URL (about 40 characters) | Yes | Yes | Yes | Yes |
| Wi-Fi settings (about 60 characters) | Yes | Yes | Yes | Yes |
| vCard contact (about 250 characters) | Yes | Yes | Yes | Yes |