Print & Stationery Standards
Paper Sizes & Dimensions Chart
Compare international ISO 216 paper sizes (A0 through A6) with North American US Letter, Legal, and Tabloid standards in both millimeters and inches.
ISO A Standard Dimensions
A4 Paper
210 × 297 mm8.3" × 11.7"
Common Printing & Office Uses:
Global international standard for office printer paper, contracts, magazine pages.
📐 The Lichtenberg $\sqrt{2}$ (1:1.414) Aspect Ratio:ISO 216 'A' series paper maintains the exact same proportion when folded in half. Two A4 sheets side-by-side make an A3 sheet. Two A5 sheets make an A4 sheet. This prevents artwork distortion when scaling up or down!