Compare paper sizes visually in mm and inches. Instantly match A, US, and Canadian sizes like A4, Letter, Legal, and more.
📄 Compare Paper Sizes: A4 vs Letter, Legal, P-Sizes and More
Looking to compare international paper sizes quickly and visually? This free tool lets you instantly compare ISO (A-series) paper sizes like A4 and A3 with US sizes like Letter, Legal, Ledger, and Canadian P-sizes such as P1 to P6.
Whether you’re printing documents, designing layouts, or buying paper, it’s essential to understand how dimensions vary across standards like:
- A4 vs Letter
- Legal vs A3
- P4 vs Half Letter
This paper size comparator helps you:
- ⚖️ Find the closest matching size across standards
- 📐 View actual paper dimensions in millimeters and inches
- 👁️ See visual overlays to compare widths and heights at a glance
- 🔁 Convert and compare paper formats in real-time
This is especially helpful for:
- Designers
- Printers
- Stationery shoppers
- International businesses
🧠 What Are the Main Paper Size Standards?
- ISO 216 (A-Series): Used in Europe and most of the world. A4 (210 × 297 mm) is the most common.
- US Paper Sizes: Includes Letter (8.5 × 11 in), Legal, Tabloid, and more. Common in the USA and Canada.
- Canadian P-Sizes: A government standard primarily used in Canada (e.g., P1, P2).