Paper size guide
A4 Paper Size
A4 is the everyday ISO office and school size used across much of the world, especially where Letter is not the default.
Quick facts
- Dimensions
- 8.27 × 11.69 in · 210 × 297 mm
- Also called
- ISO A4, A4 size paper, A4 dimensions
- Best for
- international office printing, school handouts outside North America, A4 notebooks and notes, metric-first layouts
Overview
A4 measures 210 Ă— 297 mm and is the standard office and school paper size across most countries using ISO paper formats. If you print outside North America, A4 is often the default page your printer expects.
That makes A4 one of the most important resource clusters for PaperGens. Users searching for A4 almost always want exact dimensions, a quick comparison with Letter, or printable templates that will not shift when exported at full scale.
Printable templates and hubs
Use these printable pages as the closest on-site destinations for this size, related workflow, or layout intent.
A4 College Ruled Paper
A4 lined paper with 7.1mm line spacing (college ruled)
A4 Grid 5mm
A4 5mm grid, common for STEM notes
Dot Paper 5mm (A4)
A4 dot grid paper with 5mm spacing
Lined & ruled paper
College ruled, wide ruled, legal pad layouts, and printable ruled sheets.
Notebook paper
Composition layouts, filler paper, loose leaf sheets, and note-friendly printable pages.
Graph & grid paper
Quarter-inch grids, engineering paper, coordinate planes, and specialty math layouts.
Supporting articles
A4 Paper Size in Inches: Dimensions & Conversion
A4 = 8.27Ă—11.69 inches (210Ă—297 mm). Quick inches/mm table, vs US Letter, and free printable A4 lined paper PDF.
A4 vs Letter Paper: Size Differences and When to Use Each
Compare A4 and Letter paper sizes, printer defaults, and formatting tradeoffs so you can choose the right sheet for documents, notes, and templates.
Paper Sizes: ISO vs ANSI, Printer Paper Size Guide
ISO vs ANSI paper sizes: A4 210Ă—297 mm; Letter 8.5Ă—11 in; Legal 8.5Ă—14 in; Tabloid 11Ă—17 in. Comparison chart for printing and documents.
Common questions
- What is A4 paper size in millimeters?
- A4 is 210 Ă— 297 mm.
- What is A4 paper size in inches?
- A4 is about 8.27 Ă— 11.69 inches.
- Which printable templates are best for A4?
- A4 college ruled, 5 mm A4 graph paper, and A4 dot grid sheets are the strongest starting points for printable notes and planning.