What is A3 size at 300 DPI?

SizeKit reference

A3 Size

Find A3 size in mm, cm, inches, pixels, and common DPI values.

A3 size is 297 x 420 mm, or 11.69 x 16.54 in. At 300 DPI, A3 is 3508 x 4961 px.

Immediate answer

A3 at a glance

Use these defaults for quick design, print, or layout decisions.

Pixel presets Compare group

Millimeters 297 x 420 mm physical size

Inches 11.69 x 16.54 in rounded

Pixels at 300 DPI 3508 x 4961 px print-ready default

SizeKit

Use A3 for

Choose the page path based on the next decision, not on calculator settings.

CMP Compare nearby sizes Open related sizes before choosing a format.

SizeKit

A3 key dimensions

The same values in compact cards for scanning.

Millimeters

297 x 420

Centimeters

29.7 x 42

Inches

11.69 x 16.54 in

rounded

300 DPI

3508 x 4961 px

pixels

SizeKit

More A sizes

Open nearby size pages without going back to the table.

Browse - Select - Open

All size pages

10 sizes

A / ISO A A0 841 x 1189 mm 33.11 x 46.81 in A / ISO A A1 594 x 841 mm 23.39 x 33.11 in A / ISO A A2 420 x 594 mm 16.54 x 23.39 in A / ISO A A4 210 x 297 mm 8.27 x 11.69 in A / ISO A A5 148 x 210 mm 5.83 x 8.27 in A / ISO A A6 105 x 148 mm 4.13 x 5.83 in A / ISO A A7 74 x 105 mm 2.91 x 4.13 in A / ISO A A8 52 x 74 mm 2.05 x 2.91 in A / ISO A A9 37 x 52 mm 1.46 x 2.05 in A / ISO A A10 26 x 37 mm 1.02 x 1.46 in

SizeKit

A3 pixel table

Common DPI values for designers and print workflows. Use the bottom calculator bar for custom DPI or orientation.

DPI	Portrait pixels	Landscape pixels
72 DPI	842 x 1191 px	1191 x 842 px
96 DPI	1123 x 1587 px	1587 x 1123 px
150 DPI	1754 x 2480 px	2480 x 1754 px
300 DPI	3508 x 4961 px	4961 x 3508 px
600 DPI	7016 x 9921 px	9921 x 7016 px

SizeKit

Formula

SizeKit uses a transparent rounding rule.

pixels = round((millimeters / 25.4) x DPI). Inches = millimeters / 25.4.

SizeKit

FAQ

Quick answers for this paper size.

What is A3 size in inches?

A3 is 11.69 x 16.54 in when rounded to two decimals.

What is A3 at 300 DPI?

A3 at 300 DPI is 3508 x 4961 px.

Can I switch to landscape?

Yes. Use the bottom calculator and choose landscape to swap width and height.

SizeKit

Related sizes

Compare nearby sizes before choosing a layout.

A2

Related size: 420 x 594 mm.

A4

Related size: 210 x 297 mm.

Tabloid

Related size: 279.4 x 431.8 mm.