So many envelopes! Which one do you need?

There are so many different types of envelopes currently on the market, sometimes
it’s hard to find the exact one you need. They are available in lots of different
sizes, styles, thicknesses, materials, colours and finishes.

The most popular envelope sizes are C6, C5, C4 and DL.Hopefully my little diagrams
will shed some light on the sometimes confusing task of finding the correct envelopes
for your needs.

I have also shown a table of the different sized envelopes available with the measurements
in Metric (mm) and Imperial (Inches). If you would like to view the different sizes
of paper available, you can click here to view my blog about that.

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N.B - The grey area on some of the pictures shows the size of the
envelopes in comparison with an A4 sheet of paper. (For those of you who prefer
the “old money” sizes, I have also included the measurements in inches.)

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	This is a C4 size envelope. It is one of the most common and can hold a full sheet of A4 without having to fold it. The dimensions are 324×229mm (12¾” x 9″)
	This is a C5 size envelope. It can hold an A4 sheet of paper folded in half once, or an A5 sheet unfolded. The dimensions are 229×162mm (9″x 6⅜”)
	This is a C6 size envelope. It can hold an A4 sheet of paper folded twice, an A5 sheet folded once, or A6 size paper unfolded. The dimensions are 114×162mm (4½” x 6⅜”)
	This is a DL size envelope. It is most commonly used with businesses. It can hold an A4 sheet of paper, folded twice, or an A5 sheet folded once. The dimensions are 110×220mm (4⅓” x 8⅔”)

Metric (mm)		Imperial	Metric (mm)		Imperial
98 x 67		3.86″ x 2.67″	292 x 241		11.5″ x 9.5″
102 x 76		4″ x 3″	305 x 127		12″ x 5″
110 x 220	DL	4.33″ x 8.67″	305 x 250		12″ x 10″
114 x 162	C6	4.5″ x 6.38″	318 x 267		12.5″ x 10.5″
125 x 89		4.88″ x 3.5″	324 x 229	C4	12.75″ x 9″
152 x 102		6″ x 4″	330 x 279		13″ x 11″
190 x 127		7.5″ x 5″	350 x 248		13.75″ x 9.75″
229 x 140		7.5″ x 5.5″	353 x 229		14″ x 9″
229 x 102		9″ x 4″	381 x 254		15″ x 10″
229 x 162	C5	9″ x 6.38″	381 x 151		15″ x 6″
235 x 121		9.25″ x 4.75″	394 x 318		15.5″ x 12.5″
240 x 165		9.5″ x 6.5″	406 x 305		16″ x 12″
241 x 178		9.5″ x 7″	444 x 368		17.5″ x 14.5″
254 x 178		10″ x 7″	457 x 324	C3	18″ x 12.75″
270 x 216		10.63″ x 8.5″