Paper Size Reference (A/B/US)
Look up paper size dimensions in mm and inches.
What you provide
Result
A4 — 210 × 297 mm
A4 measures 210×297 mm. For a full-quality print at this size you need an image of about 2480×3508 pixels (300 DPI).
- Millimetres
- 210 × 297 mm
- Inches
- 8.27 × 11.69 in
- Pixels at 300 DPI
- 2480 × 3508 px
What this cannot tell you
- Standard nominal dimensions. Actual cut sizes vary by a fraction of a millimetre between manufacturers.
Take this with you
How this calculation works
Select a paper size to see its dimensions in millimetres and inches, plus the pixel size at 300 DPI for print work.
What the results mean
- A-series
- Each A size is half the previous — A4 is half of A3. The ratio stays constant so scaling never distorts.
- At 300 DPI
- The pixel dimensions you need for a full-quality print at that paper size.
Frequently asked questions
What is the difference between A4 and US Letter?
A4 (210×297mm) is slightly narrower and taller than US Letter (216×279mm). A4 is standard almost everywhere except North America. Documents designed for one can clip or leave extra margin on the other, so it is worth checking before printing across regions.
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