Paper Size Simulator | Compare A & B Series at Actual Scale

Paper Size Comparison Simulator by ASOBOAD

Reference Size

Changes the red dashed frame size.
Compare with a familiar size.

Paper Orientation

Select Paper Size

Paper Size Comparison Simulator is a free web tool that lets you visually compare A-series (A0–A8), B-series (B0–B8), envelopes, business cards, postcards, and more against familiar references like A4 copy paper or a B5 notebook. Ideal for checking dimensions when planning poster prints, brochures, zines, or choosing the right envelope. Supports portrait/landscape toggle and custom size input. Everything runs in your browser—no sign-up required.

A4 210 × 297 mm

Ref: A4

A4

Standard copy paper

210 × 297 mm

Paper Sizes and Uses

Choosing the right paper size is crucial for print and digital design. This tool lets you compare A-series, B-series, as well as common envelope and postcard sizes.

A Series (ISO 216 International)

An international standard based on German industrial standards. A0 has an area of 1m², and each subsequent size is half: A1, A2, etc.

Size	Dimensions (mm)	Common Uses
A0	841 × 1189	Posters, blueprints
A1	594 × 841	Posters, newspaper spreads
A2	420 × 594	Calendars, posters
A3	297 × 420	Brochures, campaign posters
A4	210 × 297	Copy paper, contracts, flyers
A5	148 × 210	Textbooks, planners, invoices
A6	105 × 148	Pocket books, postcards, table displays

B Series (JIS P 0138)

A uniquely Japanese standard based on traditional "Mino paper" from the Edo period. B-series sizes are slightly larger than their A-series counterparts.

Size	Dimensions (mm)	Common Uses
B0	1030 × 1456	Station extra-large posters
B1	728 × 1030	Movie posters, maps
B2	515 × 728	Exhibition panels, calendars
B3	364 × 515	Train ads, newspaper inserts
B4	257 × 364	Manuscript paper, certificates, inserts
B5	182 × 257	Notebooks, weekly magazines
B6	128 × 182	Books, planners, desk calendars

How to Use This Tool

Select a "reference size (red frame)" and "paper size (blue area)" from the left menu. Use the "Paper Orientation" button to toggle between Portrait and Landscape.

Custom Input:
Select the "Custom" tab to enter any dimensions (mm) for comparison.

Dimensions shown are reference values. Actual printed materials may vary slightly due to manufacturing tolerances and cutting. For precise dimensions, consult your print vendor or paper manufacturer.