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Check US standard paper sizes, including everyday, ANSI, and ARCH series. Features millimeter and inch conversions with visual proportion charts.
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When printing, designing, or purchasing paper that meets North American standards, you may often struggle with the exact millimeter or inch dimensions of sizes like Letter or ANSI B. This tool serves as a static reference database specifically compiled for common US standard paper sizes. It provides a comprehensive size chart covering everyday paper (Letter, Legal, Tabloid), ANSI engineering standards, and ARCH architectural series. Dimensions are displayed simultaneously in both millimeters (W × H) and inches (W × H) to help you quickly convert and select the right size. A visual "US Paper Size Comparison Chart" intuitively illustrates the relative proportions between different sizes at a glance.
Q: What are the dimensions of US Letter paper in millimeters?
A: The standard US Letter size is 216 mm × 279 mm (equivalent to 8.5 inches × 11 inches).
Q: What is the relationship between the ANSI standard and common sizes like Letter and Tabloid?
A: The ANSI standard is widely used in North American engineering drafting. ANSI A is equivalent to Letter (216 × 279 mm), ANSI B is equivalent to Tabloid/Ledger (279 × 432 mm), while ANSI C (432 × 559 mm) and larger sizes are used for larger engineering drawings.
This tool is an informational reference page and requires no user input. The table data is based on general standards; actual products may have minor manufacturing tolerances. The comparison chart is for illustrative purposes, and display proportions may vary by device. If using these dimensions for critical production or contracts, we recommend verifying against official standard documents. This tool covers only US standards and does not include ISO international standards (such as A4).
When selecting paper within the US standard system, consider your specific use case: Letter is the top choice for everyday office documents; Legal is commonly used for contracts (it is longer to accommodate more clauses); Tabloid (ANSI B) or the larger ANSI C are ideal for posters, charts, or engineering sketches. The architectural design field tends to use the ARCH series, which has different aspect ratios (e.g., ARCH A is 9 × 12 inches). A typical example: if you need to print a Letter document at twice its size, you should choose Tabloid (11 × 17 inches) paper. Understanding these relationships can significantly improve your efficiency in printing, designing, and document preparation.
