About PaperSizeDB
A reference for choosing paper, setting up documents and checking print dimensions.
Paper sizes and sources
The paper size chart covers A0–A10 and B0–B10 from ISO 216. The nominal dimensions are cross-checked against the Xerox paper size reference. US Letter, Legal and Tabloid are defined in inches and cross-checked against HP’s paper specifications.
ISO B differs from JIS B. For instance, ISO B5 is 176 × 250 mm and JIS B5 is 182 × 257 mm. HP’s printer documentation lists both measurements.
Units and pixels
One inch equals 25.4 millimeters. The chart uses the standard’s original unit for calculations and rounds displayed conversions. Pixel counts are the dimensions in inches multiplied by PPI and rounded to whole pixels.
Paper and print previews
The comparison tool draws the outlines at a shared scale. The print fit preview calculates the smaller of the width and height ratios for the selected printable area. It uses centered portrait pages and example margins.
The print preview reports the printed page size and the crop from each edge for centered placement. Fit uses the smaller width or height ratio and can enlarge a page. The labels follow Acrobat’s page sizing options. Calibration files match A3, A4, A5, Letter and Legal paper; the printable chart includes a two-way scaling reference.
Report a correction
If you find a dimension or instruction that needs updating, send the page address and your source.