Paper Size and Print Pixel Converter
Convert common ISO A-series, US Letter and Legal paper sizes between millimetres, inches and print pixels.
Set your values
Adjust the values, then calculate your result.
How to use Paper Size and Print Pixel Converter
- Enter the measurements or amounts in the fields above.
- Check that dimensions, rates and units match the labels.
- Select “Convert paper size” to see a clear estimate and the formula used.
How the paper size and print pixel converter works
Physical dimensions use standard ISO 216 or US paper sizes. Pixel dimensions are calculated as inches × entered DPI and rounded to whole pixels.
Check your measurements and assumptions
Pixel dimensions depend on resolution. Printing software and printer margins may scale or clip the document.
Review the estimate before you act
Compare this result with an independent measurement, supplier quote or institution guidance when the decision matters. Confirm that the units and assumptions match the labels above, and update the inputs when the conditions change. Keep a note of the values used so you can reproduce the estimate later. This calculator is a planning aid and does not replace professional, product-specific or local guidance.
What is A4 in pixels at 300 DPI?
A4 is approximately 2480 × 3508 pixels at 300 DPI in portrait orientation.
Is input uploaded?
Processing takes place in your browser. This tool does not send your input or selected files to a conversion API.