Free B Paper Sizes to Pixels Converter
Convert standard ISO B-series paper dimensions (B0–B10) to digital screen pixels (px) based on PPI / DPI settings
B Paper Size Converter
Standard ISO B series paper sizes
Understanding ISO B Paper Size Conversions
Standardized internationally under the standard **ISO 216** framework, the B-series paper sizes offer essential layout canvas alternatives when standard A-series options are too small or too large. Relying on the identical aspect ratio of **1:√2 (1:1.414)**, B-series sheets scale perfectly.
The Mathematical Formula
To convert metric B-series paper measurements into pixel dimensions, divide the width and height millimeter values by 25.4 to determine physical inches, and multiply the resulting values by the PPI/DPI target:
Width (PX) = (Width mm ÷ 25.4) × DPI
Height (PX) = (Height mm ÷ 25.4) × DPI
For example, to calculate standard B5 (176 × 250 mm) book layout paper in digital pixels under standard screen density of 96 PPI:
Height: (250 mm ÷ 25.4) × 96 PPI = 944.8 px (rounded to 945px)
To prepare the identical B5 page for professional high-quality print publications at 300 DPI:
Height: (250 mm ÷ 25.4) × 300 DPI = 2,952.7 px (rounded to 2,953px)
ISO B Paper Dimensions Reference Table
Compare physical millimeter dimensions and calculated pixels across standard resolution densities:
| ISO Format | Millimeters (mm) | at Web Standard (96 PPI) | at Print Standard (150 DPI) | at High-Res Press (300 DPI) |
|---|---|---|---|---|
| B0 | 1000 × 1414 | 3,780 × 5,344 px | 5,906 × 8,350 px | 11,811 × 16,701 px |
| B1 | 707 × 1000 | 2,672 × 3,780 px | 4,175 × 5,906 px | 8,350 × 11,811 px |
| B2 | 500 × 707 | 1,890 × 2,672 px | 2,953 × 4,175 px | 5,906 × 8,350 px |
| B3 | 353 × 500 | 1,334 × 1,890 px | 2,085 × 2,953 px | 4,169 × 5,906 px |
| B4 | 250 × 353 | 945 × 1,334 px | 1,476 × 2,085 px | 2,953 × 4,169 px |
| B5 | 176 × 250 | 665 × 945 px | 1,039 × 1,476 px | 2,079 × 2,953 px |
| B6 | 125 × 176 | 472 × 665 px | 738 × 1,039 px | 1,476 × 2,079 px |
Designing for Digital Displays vs High-Res Print
When constructing book layouts, magazine panels, or posters for online viewing, use **96 PPI** to assure physical dimensions translate accurately on digital screens. When configuring catalog covers or advertising materials for publishing presses, configure your targets to **300 DPI** to avoid pixelation.
