World of Envelopes 
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Envelope sizes dimensions – All envelope sizes available at World of Envelopes!

From C5, to square, to DL: there are many different envelope sizes recognised. At World of Envelopes, we present all of the sizes you could possibly need. Moreover, we provide you with the information necessary to locate an envelope or postal and packaging product that meets your requirements. Keeping that in mind, read on to discover more information regarding the envelope sizes dimensions and the relevant products we have available… When you need Envelope Sizes and Envelope or the best Envelopes we can help.

Envelope sizes dimensions

The envelope sizes dimensions used in the UK is the ‘C series’. This consists of envelopes ranging from C0 to C10: however those from C3 to C7 are most widely utilized; with C4 and C5 being the most popular of them all. The sizes in mm are as follows: C0 (1297 x 917), C1 (917 x 648), C2 (648 x 458), C3 (458 x 324), C4 (324 x 229), C5 (229 x 162), C6 (162 x114), C7 (114 x 81), C8 (81 x 57), C9 (57 x 40) and C10 (40 x 28). In addition to this, there is the DL envelope. This is an extremely popular envelope for business use and boasts the following dimensions: 110 mm x 220 mm.

No matter what size envelope you purchase, one thing you can be confident of is extremely low prices. At World of Envelopes, value for money is an attribute we are proud to boast. This is represented via the prices we have and the special offers we constantly present to our customers. Our bulk discount is a good example of this. It gives you the opportunity to make savings of up to 60 per cent. You won’t find better deals than this anywhere else on the internet today.

On a final note, if you have any queries regarding the envelope sizes dimensions and the relevant envelopes we sell, please do not hesitate to get in touch. You can send an email to or you can give us a call on 01628 810 000. Our sales support line is accessible every day from Monday to Friday between the hours of 8.00 am and 5.30 pm. We look forward to hearing from you. 

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