SizeKit reference
A1 Size
Find A1 size in mm, cm, inches, pixels, and common DPI values.
Immediate answer
A1 at a glance
Use these defaults for quick design, print, or layout decisions.
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Use A1 for
Choose the page path based on the next decision, not on calculator settings.
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A1 key dimensions
The same values in compact cards for scanning.
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More A sizes
Open nearby size pages without going back to the table.
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A1 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 | 1684 x 2384 px | 2384 x 1684 px |
| 96 DPI | 2245 x 3179 px | 3179 x 2245 px |
| 150 DPI | 3508 x 4967 px | 4967 x 3508 px |
| 300 DPI | 7016 x 9933 px | 9933 x 7016 px |
| 600 DPI | 14031 x 19866 px | 19866 x 14031 px |
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Formula
SizeKit uses a transparent rounding rule.
pixels = round((millimeters / 25.4) x DPI). Inches = millimeters / 25.4.
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FAQ
Quick answers for this paper size.
What is A1 size in inches?
A1 is 23.39 x 33.11 in when rounded to two decimals.
What is A1 at 300 DPI?
A1 at 300 DPI is 7016 x 9933 px.
Can I switch to landscape?
Yes. Use the bottom calculator and choose landscape to swap width and height.
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Related sizes
Compare nearby sizes before choosing a layout.
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