in / mmReference desk for envelope sizes, label sizes, sticker sizes, and printable templates.
SizeDesk
HomeEnvelopesShipping labelsStickersTemplates
Measure it before you print it.One calm test sheet saves the rerun.
Main reference

Common print sizes in one desk

Check envelope, label, sticker, and paper dimensions without bouncing between supplier PDFs.

Fastest start4 x 6 labels and #10 envelopes

Those are the two formats most shops and home printers run into first.

Best forMail, packaging, retail stickers

The site is built around practical print jobs, not marketing copy.

What saves moneyOne blank proof sheet

Alignment issues show up faster on paper than on screen.

Quick check

How to use this desk

Start broad, then zoom in. If the job is mail, use the envelope or shipping label guides. If it wraps a bottle or sticks on retail packaging, open the label pages before you lock the artwork.

  • Use the table to get the finished size, then check the matching page for fit notes and common trouble spots.
  • Keep measurements in both inches and millimeters when you hand files off to a printer or supplier.
  • If a shape will bend, wrap, or sit near a seam, test it on the real item before you approve the print run.

Most-used sizes (in / mm)

in / mmmm / in
Size nameCommon nameItem sizeShapeBest use
#6 3/4Policy envelope3.625 x 6.5 in
(92 x 165 mm)
Envelopeinsurance notices and compact mail
#9Reply envelope3.875 x 8.875 in
(98 x 225 mm)
Envelopereturn mail inserts
#10Business envelope4.125 x 9.5 in
(105 x 241 mm)
Envelopeletters, invoices, folded Letter sheets
A2Announcement envelope4.375 x 5.75 in
(111 x 146 mm)
EnvelopeRSVP cards and short notes
A6Announcement envelope4.75 x 6.5 in
(121 x 165 mm)
Envelopephotos and invitations
A7Invitation envelope5.25 x 7.25 in
(133 x 184 mm)
Envelope5 x 7 cards
A9Large invitation envelope5.75 x 8.75 in
(146 x 222 mm)
Envelopehalf-sheet cards and flat mailers
6 x 9Booklet envelope6 x 9 in
(152 x 229 mm)
Envelopebooklets, folded kits, manuals
9 x 12Catalog envelope9 x 12 in
(229 x 305 mm)
Envelopeflat documents and presentation sheets
10 x 13Catalog envelope10 x 13 in
(254 x 330 mm)
Envelopelarger packets and document sets
4 x 6Thermal shipping label4 x 6 in
(102 x 152 mm)
Rectangle labelparcel labels and carrier PDFs
4 x 2Thermal product label4 x 2 in
(102 x 51 mm)
Rectangle labelshelf labels, barcode strips, tote labels
2.625 x 1Address label2.625 x 1 in
(67 x 25 mm)
Rectangle labelreturn addresses and short mailing lines
2.25 x 1.25Barcode / FNSKU label2.25 x 1.25 in
(57 x 32 mm)
Rectangle labelproduct ID and compact barcode work
3 x 2Small product label3 x 2 in
(76 x 51 mm)
Rectangle labeljar fronts, samples, retail stickers
3.5 x 4Wine front label3.5 x 4 in
(89 x 102 mm)
Rectangle labelstandard bottle front panels
8 x 2Water bottle wrap8 x 2 in
(203 x 51 mm)
Wrap labelsmall bottle wrap labels
2 x 2Square sticker2 x 2 in
(51 x 51 mm)
Square stickersmall logos and handout seals
3 x 3Square sticker3 x 3 in
(76 x 76 mm)
Square stickerlaptop, promo, and product branding
4 x 4Square sticker4 x 4 in
(102 x 102 mm)
Square stickerlarger retail and event stickers
2 inchRound sticker2 x 2 in
(51 x 51 mm)
Round stickerseals, thank-you stickers, short logos
3 inchRound sticker3 x 3 in
(76 x 76 mm)
Round stickerproduct lids and larger handouts
11.5 x 3Bumper sticker11.5 x 3 in
(292 x 76 mm)
Long rectanglecar bumpers and wide message stickers
LetterUS Letter paper8.5 x 11 in
(216 x 279 mm)
Paperhome printer sheets and office templates
LegalUS Legal paper8.5 x 14 in
(216 x 356 mm)
Paperlong forms and document stacks
TabloidTabloid paper11 x 17 in
(279 x 432 mm)
Paperlarge proof sheets and posters
A4A4 paper8.27 x 11.69 in
(210 x 297 mm)
Paperinternational office printing
A5A5 paper5.83 x 8.27 in
(148 x 210 mm)
Papersmall inserts and compact handouts

These are the sizes people usually reach for first. Real stock, printer margins, and wrap overlap still decide the final fit.

Common questions

Should I start from the product or the printer?

Start from the product if the label wraps, bends, or sits near a seam. Start from the printer when the stock format is fixed and you need the label to fit the sheet.

Do I need both inches and millimeters?

Usually yes. One shop might spec inches while the cutting template or supplier sheet uses millimeters. Keeping both visible avoids last-minute conversion mistakes.

What is the safest way to proof a new size?

Print one blank proof on cheap paper, cut it roughly, and hold it against the real item. It takes a few minutes and catches bad assumptions early.