# A4 Paper Size: 210 × 297 mm, Inches & Pixels \| Paper & Scale

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## Quoted source content

> 1. [Home](<https://paper-and-scale.com/>)
> 2. [Paper sizes](<https://paper-and-scale.com/paper-sizes/>)
> 3. A4 paper
>
> FORMAT NOTES
>
> # A4 paper size.
>
> The everyday document format. A4 is used for letters, reports, forms and home printing.
>
> ![A4 paper dimensions, 210 by 297 millimetres](<https://paper-and-scale.com/images/paper-sizes-a4-figure-1.d97f0f7d30.svg>)
>
> Nominal A4 dimensions in portrait orientation. The outline shows proportions; it is not displayed at physical size.
>
> ## What size is A4?
>
> 210 × 297 mm
>
> That is **21 × 29.7 cm**, or approximately **8.27 × 11.69 inches**. These are portrait dimensions. Swap width and height for landscape.
>
> A4 is half the nominal area of A3 and about twice that of A5. US Letter is wider and shorter, so check the paper setting when sharing documents between the two formats.
>
> ## A4 size in pixels
>
> Paper has physical dimensions; its pixel dimensions depend on the resolution you choose. The values below are rounded to the nearest whole pixel.
>
> | Image resolution | Width × height |
> | --- | --- |
> | 72 PPI | 595 × 842 px |
> | 150 PPI | 1240 × 1754 px |
> | 300 PPI | 2480 × 3508 px |
> | 600 PPI | 4961 × 7016 px |
>
> A 300 PPI image covering an A4 page is approximately 2480 × 3508 pixels. This describes image resolution, not the printer’s dot resolution.
>
> Already have an image? [Check its physical print size](<https://paper-and-scale.com/tools/pixels-to-print/>) at your chosen PPI.
>
> ## Printing and scaling A4
>
> To fit an A4 page on A3, use approximately 141.4%. To reduce it to A5, use approximately 70.5%. These percentages use the rounded nominal dimensions and assume no printer margins.
>
> For a document that must retain its dimensions, select **Actual size** or **100%** in your print dialogue, check the preview, then measure a test print. [Read the actual-size printing guide](<https://paper-and-scale.com/guides/print-at-actual-size/>).
>
> [Calculate a print scale](<https://paper-and-scale.com/tools/print-scale/>)
>
> ## How much does a sheet weigh?
>
> At 80 gsm, one nominal A4 sheet weighs approximately **4.99 g**. Paper GSM measures mass per square metre, so heavier stock changes the result without changing the page dimensions.
>
> [Calculate paper weight](<https://paper-and-scale.com/tools/paper-weight/>) for your stock and number of sheets.
>
> A4 AT A GLANCE
>
> **Millimetres**
> 210 × 297
>
> **Centimetres**
> 21 × 29.7
>
> **Inches, approx.**
> 8.27 × 11.69
>
> **At 300 PPI**
> 2480 × 3508 px
>
> [Compare all paper sizes](<https://paper-and-scale.com/paper-sizes/>)
>
> ## Sources & method
>
> - [ISO 216:2007](<https://www.iso.org/standard/36631.html>) · Nominal paper dimensions
> - [Adobe A-series format reference](<https://www.adobe.com/uk/creativecloud/design/discover/a0-format.html>) · Published millimetre dimensions
> - [Adobe printed image resolution](<https://helpx.adobe.com/photoshop/desktop/crop-resize-transform/resize-adjust-resolution/printed-image-resolution.html>) · How pixels relate to printed size
>
> Dimensions use the published nominal sizes. Conversions and calculator examples are derived from those values. Calculated results are estimates for planning, not printer calibration.
>
> ## Keep things in proportion.
>
> [All print tools](<https://paper-and-scale.com/tools/>)
>
> [Print scale calculator A4 to A3? A3 to A5? Get the percentage that fits your page.](<https://paper-and-scale.com/tools/print-scale/>)[Pixels to print size Find out how large an image can print at your chosen resolution.](<https://paper-and-scale.com/tools/pixels-to-print/>)[Print sheet layout planner Compare layouts with bleed, margins and gaps. Export a plan you can measure.](<https://paper-and-scale.com/tools/print-layout/>)[Paper weight calculator From one sheet to a full ream. Estimate the weight using GSM.](<https://paper-and-scale.com/tools/paper-weight/>)

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