Compare any two paper sizes side by side. Choose a unit and pick two sizes to see the difference.
Frequently Asked Questions
How do I compare two paper sizes?
Select two paper sizes from the dropdowns above. The visual diagram and table will update instantly, showing dimensions in your chosen unit.
Is A4 bigger than US Letter?
A4 (210 × 297 mm) is slightly narrower and taller than US Letter (216 × 279 mm). A4 is 3.4% smaller by area.
What is the difference between A4 and A5?
A5 is exactly half the area of A4. A5 measures 148 × 210 mm (5.83 × 8.27 in), which is A4 folded in half.