Paper sizes in pixels

A0–A10 paper sizes in pixels

Pixel dimensions for every ISO A size, calculated from the defining millimeters. Each size is half of the previous one with the same √2 proportion.

A0–A10 paper sizes in pixels · portrait width × height · nearest pixel
Format	72 DPI	96 DPI	150 DPI	300 DPI	600 DPI	Calculator
A0841 × 1189 mm	2384 × 3370	3179 × 4494	4967 × 7022	9933 × 14043	19866 × 28087	Open ↗
A1594 × 841 mm	1684 × 2384	2245 × 3179	3508 × 4967	7016 × 9933	14031 × 19866	Open ↗
A2420 × 594 mm	1191 × 1684	1587 × 2245	2480 × 3508	4961 × 7016	9921 × 14031	Open ↗
A3297 × 420 mm	842 × 1191	1123 × 1587	1754 × 2480	3508 × 4961	7016 × 9921	Open ↗
A4210 × 297 mm	595 × 842	794 × 1123	1240 × 1754	2480 × 3508	4961 × 7016	Open ↗
A5148 × 210 mm	420 × 595	559 × 794	874 × 1240	1748 × 2480	3496 × 4961	Open ↗
A6105 × 148 mm	298 × 420	397 × 559	620 × 874	1240 × 1748	2480 × 3496	Open ↗
A774 × 105 mm	210 × 298	280 × 397	437 × 620	874 × 1240	1748 × 2480	Open ↗
A852 × 74 mm	147 × 210	197 × 280	307 × 437	614 × 874	1228 × 1748	Open ↗
A937 × 52 mm	105 × 147	140 × 197	219 × 307	437 × 614	874 × 1228	Open ↗
A1026 × 37 mm	74 × 105	98 × 140	154 × 219	307 × 437	614 × 874	Open ↗

Calculate a canvas with your own settings

Your dimensions

On your device

Start from a paper or photo size

Presets set the finished print size and unit. PPI and rounding remain your choice.

Print width

The desired finished width, before any bleed.

Print height

The desired finished height, before any bleed.

Size unit

Applies to both dimensions.

Target resolution PPI

Use your print provider’s requirement when available.

Pixel rounding

Nearest is a conventional approximation; round up meets at least the target PPI on both axes.

Use a decimal point, without commas. Physical lengths and PPI accept up to 4 decimal places.

Example result

2,480 × 3,508 pixels

210 × 297 mm at 300 PPI · nearest pixel

Total pixels: 8.7 MP
Width density: 299.9619 PPI
Height density: 300.0108 PPI

Illustrative geometry · proportions, not actual screen size

Nearest-pixel rounding can fall slightly below the target on one axis. Use Round up when the target is a strict minimum.

This is the canvas size. Changing a file’s PPI metadata alone does not create these pixels.

Calculation details & inputs

Inputs used for this result
Print width	210
Print height	297
Size unit	Millimeters (mm)
Target resolution	300 PPI
Pixel rounding	Nearest whole pixel

Result details · 6 decimals or 3 significant digits for tiny values
Required width (px)	2,480
Required height (px)	3,508
Exact width before rounding (px)	2,480.314961
Exact height before rounding (px)	3,507.874016
Effective width PPI	299.961905
Effective height PPI	300.010774

How these pixel sizes are calculated

A sizes are defined in millimeters, and each is created by halving the previous size across its long side. Because the proportion stays at 1 : √2, artwork scales between A sizes without cropping; a 300 PPI A4 layout reduced to A5 becomes about 424 PPI. Values use nearest whole-pixel rounding in portrait orientation; swap width and height for landscape.

pixels = size in inches × DPI = (size in mm ÷ 25.4) × DPI

Open a row in the calculator to choose round-up instead of nearest rounding, change orientation or enter a custom density. Use the full paper reference to search all 51 formats and download a CSV.