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Paper Size Converter

Look up A-series, Letter, Legal, and Tabloid paper dimensions in millimeters and inches.

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What Is Paper Size Converter?

The Paper Size Converter looks up every ISO A-series size from A0 to A10 plus US Letter, Legal, and Tabloid, showing exact dimensions in millimeters and inches. Designers get print dimensions instantly, and everyone else finally learns what the numbers in A4 actually mean.

Who Uses the Paper Size Converter?

Designers, students, office workers, and print shops use it to set document sizes, buy the right paper, and convert between ISO and US standards.

How to Use the Paper Size Converter

  1. Pick a paper size from A0 to A10, Letter, Legal, or Tabloid.
  2. Read the dimensions in millimeters and inches.
  3. Use the figures directly in your design or print settings.

Why Choose Our Paper Size Converter?

  • Full A0-A10 series plus the three US standards
  • Millimeter and inch dimensions side by side
  • Explains how each A size halves the previous one

Try the Paper Size Converter above — it is free, fast, and works on any device. Bookmark this page to return whenever you need it.