🧮 Interactive QR & Barcode Print Size & DPI Calculator
Minimum Physical Print Size
30.0 × 30.0 mm
1.18 × 1.18 inches
Required Pixel Resolution
354 × 354 px
Recommended Export: 1200×1200 px or Vector SVG
Mandatory Quiet Zone Margin
3.5 mm Clear Border
4 Modules (QR) / 10× X-Dimension (1D)
1. Official GS1 & ISO Print Dimension Reference Table
| Application / Symbology | Recommended Print Size (mm / in) | Minimum X-Dimension (Bar/Module Width) | Minimum Quiet Zone | Best Export Format |
|---|---|---|---|---|
| Business Card / Product Tag QR Code | 20 × 20 mm (0.8 × 0.8 in) | 0.40 mm (16 mils) | 4 modules all around | Vector SVG / 1200px PNG |
| Restaurant Table Menu / Flyer QR | 30 × 30 mm (1.2 × 1.2 in) | 0.50 mm (20 mils) | 4 modules all around | Vector SVG / 1200px PNG |
| EAN-13 / UPC-A Retail Packaging (100% Nominal) | 37.29 × 25.93 mm (1.47 × 1.02 in) | 0.33 mm (13 mils) | 3.63 mm Left / 2.31 mm Right | Vector SVG (100% K-Black) |
| EAN-13 Minimum Allowed (80% Magnification) | 29.83 × 20.74 mm (1.17 × 0.82 in) | 0.264 mm (10.4 mils) | 2.90 mm Left / 1.85 mm Right | Vector SVG |
| Code 128 / ITF-14 Logistics Carton Label | 100 × 32 mm (3.94 × 1.26 in) | 0.495 mm (19.5 mils) | 10× narrow bar width (≥ 5.0 mm) | Vector SVG / 300 DPI Thermal |
2. Optical Contrast & CMYK Ink Rules for Commercial Pre-Press
- Avoid Red, Orange, or Yellow Bars: Retail laser barcode scanners operate using red light diodes in the 630 nm to 670 nm wavelength spectrum. Red ink reflects red laser light identically to white paper, rendering red barcodes completely invisible to laser scanners. Always use pure black, deep navy, or dark forest green bars on a high-reflectance white substrate.
- Use 100% Key Black (0C, 0M, 0Y, 100K) for Barcodes: In commercial offset printing, printing barcodes in 4-color "Rich Black" can cause microscopic plate registration shifts that blur bar edges. Set vector SVG barcode fills to 100% K-only black.
- Never Invert 1D Barcodes without Testing: While modern smartphone cameras can often decode white-on-black QR codes, many industrial 1D laser scanners require dark bars on a light background.