Printer paper sizes: a quick reference

Letter and A4 cover most home printing. Here are the common sizes in inches and millimeters, how to find what your printer takes, and how to set the size so prints are not scaled or clipped.

Last updated: October 17, 2026

Common printer paper sizes

Home and office printers mostly take Letter or A4. Other sizes appear for envelopes, photos and larger documents. These are the standard dimensions.

SizeInchesMillimeters
Letter8.5 x 11215.9 x 279.4
Legal8.5 x 14215.9 x 355.6
Statement (half Letter)5.5 x 8.5139.7 x 215.9
Ledger / Tabloid11 x 17279.4 x 431.8
A311.69 x 16.54297 x 420
A48.27 x 11.69210 x 297
A55.83 x 8.27148 x 210
B56.93 x 9.84176 x 250
Photo 4 x 64 x 6101.6 x 152.4
Photo 5 x 75 x 7127 x 177.8

The A series (A3, A4, A5) halves the area at each step, so an A4 sheet folded in half is A5. North America uses Letter, Legal and Ledger instead. See A4 vs Letter for the difference that matters most, and ledger, tabloid and legal sizes for the larger ones.

Which size does your printer take?

Three places tell you, and they should agree.

  • The paper tray. Many trays are marked with the sizes they hold, and adjustable guides slide to match.
  • The ream label. The wrapper states the size, such as Letter or A4, along with weight and how many sheets are in the ream.
  • The printer specifications. The manual or the maker’s product page lists supported sizes and the largest sheet the printer can take. Many home inkjets stop at Letter or A4 and cannot feed anything wider.

If you are unsure what the printer can handle, check the specifications before buying paper in an unusual size. A sheet the printer cannot grip can jam it.

Set the same size in three places

Prints come out scaled, clipped or with odd margins when the paper in the tray, the size set in the print dialog, and the page size of the document are not the same. Check all three.

  1. Load the paper and adjust the tray guides so they touch the stack lightly.
  2. In the print dialog, pick the matching paper size. The printer driver’s own setting can override the app, so check both if the result is wrong.
  3. For anything that must be true size, choose Actual size or 100% rather than Fit.

Then confirm it. Print the scale check sheet and measure the 100 mm bar. If it is not 100 mm, the page was scaled. The how-to guides for Windows, Mac, iPhone and iPad, Android and Chromebook show where the paper size setting is.

Which test page file to use

Every PDF on this site comes in Letter and A4. Pick the one that matches the paper in the tray. The download hub lists both versions side by side. If you only have the other size, print at Actual size and expect the edges to be trimmed, or use Fit and accept that measurements will be off by a few percent.

You can also create printable lined paper in Letter or A4, with adjustable spacing and margins.

If the paper size looks wrong on the page

A print that comes out too small usually means Fit or a mismatched size was used, and prints too small covers the usual causes. Cut-off edges are easiest to see on the alignment and margins page, which shows which edges your printer clips.

After you pick a size, confirm the printer really prints at that size with the printer ruler test page, which has both millimetre and inch scales.

Good questions

What is the standard printer paper size?
Letter (8.5 x 11 in) in the United States and Canada, and A4 (210 x 297 mm) in most other countries. Most home printers are built for one of the two.
How do I find out what paper size my printer uses?
Look at the label on the paper tray or the ream wrapper, then check the printer specifications for the supported sizes. Set the same size in the print dialog.
Is A4 bigger than Letter?
Neither is bigger overall. A4 is narrower (210 mm against 215.9 mm) and taller (297 mm against 279.4 mm). The gap is small but enough to scale or clip a print.
Can I print Legal or A3 on a home printer?
Only if the printer lists Legal or A3 as a supported size. Many home printers take only Letter or A4, so check the specifications before loading it.
Which size should I choose when printing a PDF?
The size of the paper in the tray. If it differs from the PDF page size, choose Actual size to keep measurements true, or Fit to see the whole page at a smaller scale.