Paper Size Converter

ISO A4 paper measures 210 × 297 millimeters. Converted to imperial units, A4 size in inches is 8.27 × 11.69 inches (more precisely 8.2677 × 11.6929 in). That single pair of numbers answers most searches — whether you type A4 paper size in inches, A4 inches, or simply need to know how wide an A4 sheet is in a US ruler.

The width is just under 8.5 inches; the height is just under 11.7 inches. A4 is therefore slightly narrower and slightly taller than US Letter (8.5 × 11 in). When a printer tray says "Letter," A4 will not fit perfectly without scaling — a common source of cropped margins in international offices.

Use the converter above to see exact values at your chosen DPI, toggle landscape orientation, and compare A4 against Letter, Legal, and Tabloid side by side.

Search engines treat many phrases as the same intent. A4 dimensions in inches, A4 measurements in inches, and A4 format in inches all refer to the physical width and height of one ISO A-series sheet. "Format" emphasizes the standardized ratio; "dimensions" and "measurements" emphasize the numbers you write on a print spec.

People also search by object: A4 page in inches, A4 page size in inch, A4 paper in inch, A4 sheet in inches, A4 sheet size in inch, and A4 sheet dimensions in inches. A page, sheet, and piece of paper are the same thing here — one unfolded A4 rectangle at portrait orientation: 8.27 in wide × 11.69 in tall.

For completeness, A4 paper dimensions in inches is the most explicit phrasing designers use when building InDesign or Canva templates for export to PDF. Always specify portrait vs landscape; swapping width and height gives 11.69 × 8.27 in for landscape A4.

The ISO 216 standard defines A-series sizes in millimeters because the metric system integrates with the √2 aspect ratio: each step down (A0 → A1 → A2…) halves the area while keeping the same proportions. A4 is the everyday office size worldwide — except in the US and Canada, where Letter dominates.

Converting mm to inches uses the fixed factor 25.4 mm per inch:

width (in) = 210 ÷ 25.4 = 8.268 in · height (in) = 297 ÷ 25.4 = 11.693 in

Rounded to two decimals you get 8.27 × 11.69 — the figures printed on copier-paper packaging in India, Europe, and most of Asia. Some US listings incorrectly label A4 as 8.5 × 11 in; that is Letter, not A4. Trust 210 × 297 mm as the source of truth.

Side-by-side in inches:

• A4: 8.27 × 11.69 in (210 × 297 mm)
• US Letter: 8.50 × 11.00 in (215.9 × 279.4 mm)
• US Legal: 8.50 × 14.00 in (215.9 × 355.6 mm)

Letter is 0.23 in wider but 0.69 in shorter than A4. A one-page résumé designed on A4 will reflow when forced onto Letter, and vice versa. For cross-border PDFs, embed fonts and set the page size explicitly rather than relying on "fit to page" at print time.

In many countries "Xerox" is shorthand for photocopying, not just the brand. Standard Xerox copier paper sold for office machines is A4 — 210 × 297 mm (8.27 × 11.69 in). Ream labels often list both metric and imperial, though some Indian marketplaces mix A4 mm with Letter inch sizes on the same listing — verify the millimeter column.

Micro Xerox paper size usually means a reduced copy on smaller stock, not a separate ISO standard. Shops typically print two A5 pages per A4 sheet or run A6 for ID-card-sized output:

• A5 (half A4): 148 × 210 mm ≈ 5.83 × 8.27 in
• A6 (quarter A4): 105 × 148 mm ≈ 4.13 × 5.83 in

If a shop asks whether you want "full" or "micro" Xerox, full is almost always A4; micro is a scaled-down duplicate on A5 or A6. Select A5 in the converter above for micro-format dimensions in inches and pixels.

Digital design converts inches to pixels with pixels = inches × DPI (dots per inch). At common print resolutions for A4 portrait:

• 72 DPI (screen preview): 595 × 842 px
• 150 DPI (draft print): 1,240 × 1,754 px
• 300 DPI (quality print): 2,480 × 3,508 px

Enter any DPI in the tool to recalculate instantly. Web mockups often use 96 DPI; professional offset print expects 300 DPI for crisp text. The inch dimensions stay 8.27 × 11.69 regardless of DPI — only the pixel grid changes.

A4 sits in the middle of the A-series. Neighbors help when scaling brochures or folding leaflets:

• A3: 11.69 × 16.54 in — twice the area of A4
• A5: 5.83 × 8.27 in — half of A4
• B4 (JIS): 10.12 × 14.33 in — common in Japanese office equipment

Folding A4 once along the long edge yields two A5 panels — standard for booklets and event programs. Knowing inch equivalents avoids surprises when importing templates from metric-only publishers.

When creating PDFs for international audiences, set the page size to A4 (210 × 297 mm) in your word processor or design app — do not assume Letter. Export with embedded fonts so inch-to-mm rounding does not shift line breaks.

At the printer, choose the tray that matches physical paper. Loading A4 into a Letter-only tray causes skew or clipping. If you must print A4 content on Letter stock, scale to fit and expect wider side margins. For pixel-perfect work, design at 300 DPI using the exact dimensions above rather than rounded 8.3 × 11.7 shortcuts.