printing-paper-sizes-cm
If you are searching for printing paper sizes in cm, this guide covers the most common international paper formats (A-series and B-series) plus US sizes like Letter and Legal. Knowing the exact size helps avoid trimming mistakes, printing errors, and wasted paper
A-series paper sizes (ISO) in cm
The A-series is the most widely used standard for office and printing paper worldwide.
| Size | Width (cm) | Height (cm) |
|---|---|---|
| A0 | 84.1 | 118.9 |
| A1 | 59.4 | 84.1 |
| A2 | 42.0 | 59.4 |
| A3 | 29.7 | 42.0 |
| A4 | 21.0 | 29.7 |
| A5 | 14.8 | 21.0 |
| A6 | 10.5 | 14.8 |
B-series paper sizes (ISO) in cm
The B-series sits between A-series sizes and is commonly used for books, posters, publishing formats, and some envelopes.
| Size | Width (cm) | Height (cm) |
|---|---|---|
| B0 | 100.0 | 141.4 |
| B1 | 70.7 | 100.0 |
| B2 | 50.0 | 70.7 |
| B3 | 35.3 | 50.0 |
| B4 | 25.0 | 35.3 |
| B5 | 17.6 | 25.0 |
| B6 | 12.5 | 17.6 |
US paper sizes in cm (Letter / Legal)
Some print jobs require US sizes.
| Size | Width (cm) | Height (cm) |
|---|---|---|
| Letter | 21.6 | 27.9 |
| Legal | 21.6 | 35.6 |
Most used paper sizes for printing
| Size | Width (cm) | Height (cm) | Common uses |
|---|---|---|---|
| A4 | 21.0 | 29.7 | Documents, invoices, forms, office printing |
| A3 | 29.7 | 42.0 | Posters, large documents, design proofs |
| A5 | 14.8 | 21.0 | Booklets, small flyers, notebooks |
| B5 | 17.6 | 25.0 | Books, notebooks, publishing formats |
How to choose the right paper size
Before ordering paper, confirm:
Use case: office printing, brochures, packaging, invoices, books, labels
Printer capability: A4 only or supports A3/B sizes
Final trim size: if the job needs cutting after printing
Paper type and GSM: woodfree, coated (art), kraft, NCR, sticker/label
Orientation: portrait vs landscape (and layout margins)
Quick ordering checklist (to avoid mistakes)
Send this info to get an accurate quote:
Paper type (woodfree / coated / kraft / NCR / sticker)
GSM (weight)
Size (A4/A3/B5/Letter, etc.)
Quantity (reams / sheets / bulk)
Intended use (documents, brochure, packaging, etc.)
FAQ
Is A4 the same everywhere?
Yes, A4 is standardized at 21 × 29.7 cm.
Which is bigger: A4 or Letter?
They are close, but Letter (21.6 × 27.9 cm) is wider and shorter than A4.
What size is best for books?
Many books and notebooks commonly use B5 or close publishing formats, depending on design and printing requirements.
Request a quote
For pricing and availability, send: paper type + GSM + size + quantity + intended use.
WhatsApp: +20 122 212 3986
Email: yassersami@brotherhoodpaper.com
A1: In Egypt, the most common office sizes are A4 (21 × 29.7 cm) and A3 (29.7 × 42 cm). For commercial printing, sheet sizes are often discussed by “frakh” cuts: full sheet 70 × 100 cm, half sheet 50 × 70 cm, quarter sheet 35 × 50 cm, and eighth sheet 25 × 35 cm (often called the “commercial” size).
A2: A4 (21 × 29.7 cm) is a final, ready-to-use size for office printers. SRA3 is an untrimmed commercial printing size (about 32 × 45 cm) designed to allow bleed and trimming after printing. In Egypt, many printers also refer to nearby “quarter sheet” sizes like 35 × 50 cm when talking about press sheets.
A3: It depends on the press size, but common sheet formats used in commercial printing include full sheet 70 × 100 cm, half sheet 50 × 70 cm, and quarter sheet 35 × 50 cm. Smaller jobs are also commonly produced on 25 × 35 cm (eighth sheet) after cutting.
A4: Grain direction (long-grain or short-grain) affects folding, binding, and how paper behaves on press. For best results, the grain should run parallel to the folding direction; wrong grain can cause cracking on folds and curling.
