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Check US standard paper sizes, including everyday, ANSI, and ARCH series. Features millimeter and inch conversions with visual proportion charts.
Overview
Understand what the tool solves, how it works, and the boundaries of its data.
This static chart lists eight rows: Letter, Legal, Tabloid, ANSI A, ANSI B, ANSI C, ARCH A, and ARCH B. Each row gives width × height in inches and millimeters. Letter/ANSI A and Tabloid/ANSI B appear under both common office names and drawing-series names.
In the listed entries, Letter and ANSI A are 8.5 × 11 in; Legal is 8.5 × 14 in; Tabloid and ANSI B are 11 × 17 in; ANSI C is 17 × 22 in. ARCH A is 9 × 12 in and ARCH B is 12 × 18 in. The names refer to different use contexts, so check the full label when choosing a sheet.
US paper sizes are commonly named in inches, while millimeters can help with international specifications or metric page setup. The conversion is direct: millimeters = inches × 25.4. NIST defines the inch as exactly 25.4 mm. The chart rounds the resulting metric dimensions to whole millimeters; for example, 8.5 × 11 in equals 215.9 × 279.4 mm and displays as 216 × 279 mm.
The inch dimensions remain the source values for the named sizes. A rounded millimeter figure is convenient for reference, but it is not more precise than the underlying conversion.
ANSI A matches Letter dimensions and ANSI B matches Tabloid dimensions in this chart. The ANSI labels belong to a drawing-sheet naming context; ASME Y14.1 covers engineering drawing sheet sizes and formats. ARCH labels identify another set of architectural sheet dimensions: ARCH A and ARCH B are not interchangeable with ANSI A and ANSI B merely because each series uses letters.
This page contains a focused set of common sizes rather than every available US, architectural, envelope, or large-format size. Use the exact dimensions required by your print job or drawing specification.
Guide
Follow the workflow and verify inputs and outputs with practical examples.
Find Letter, Legal, Tabloid, an ANSI label, or an ARCH label. Do not rely on the letter alone when comparing ANSI and ARCH series.
For a landscape layout, the same sheet may be turned, but the chart reports the listed orientation as width × height. Confirm how your printer or document settings interpret orientation.
Use inches for common US paper presets. If a metric field is required, use the millimeter column as a rounded reference or convert the inch values using 25.4 mm per inch.
When scaling a document, confirm the target sheet size in the print dialog and check fit, margins, and orientation. A dimension match alone does not guarantee that content will print at the intended scale.
Use cases
See how the tool fits into real work and everyday tasks.
Confirm Letter or Legal dimensions before creating a page layout or choosing a printer preset.
Compare Tabloid or ANSI C dimensions when a chart, poster, or drawing needs a larger sheet than Letter.
Check whether a request specifies ANSI or ARCH before sharing files with a print shop or project partner.
Q&A
Find concise answers to common questions and confusing cases.
Letter is 8.5 × 11 inches, displayed here as 216 × 279 mm after rounding to whole millimeters.
No. In this chart Legal is 8.5 × 14 inches. ANSI A is the 8.5 × 11 inch size that matches Letter.
No. ARCH A is 9 × 12 inches here; ANSI A is 8.5 × 11 inches.
Notes
Review scope, result limitations, and important precautions before use.
This chart is a reference for its listed entries only. It does not include ISO sizes such as A4 or every US paper, envelope, and architectural size. Millimeter values are rounded to the nearest whole millimeter from exact inch conversion. Verify the required format with the drawing specification, printer, or print provider when exact production dimensions matter.
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