standard envelope size in cm


Common standard envelope sizes in centimeters include:

- C4: 22.9 x 32.4
- C5: 16.2 x 22.9
- C6: 11.4 x 16.2
- DL: 11.0 x 22.0

These are based on ISO standards and may vary by region or purpose.





standard envelope size in inches


The standard envelope size in inches, particularly for a #10 business envelope commonly used in the US, is 4.125 by 9.5. Other common sizes include A2 at 4.375 by 5.75, A6 at 4.75 by 6.5, and A7 at 5.25 by 7.25.





standard letter envelope sizes


Standard letter envelope sizes vary by region and standard, but common ones include:

In the United States, the #10 envelope is the most widely used for business letters, measuring 4.125 inches by 9.5 inches.

Internationally, based on ISO standards, the C series is prevalent:
- C4: 229 mm by 324 mm (suitable for A4 paper)
- C5: 162 mm by 229 mm (for A4 paper folded once)
- C6: 114 mm by 162 mm (for A4 paper folded twice)

Other US sizes include #9 at 3.875 inches by 8.875 inches and A2 at 4.375 inches by 5.75 inches for smaller correspondence. Always check specific requirements for mailing or printing compatibility.





commercial envelope size


Commercial envelope sizes, commonly used in the United States for business mail, refer to standard dimensions for envelopes like those for letters and invoices. The most common is the #10 size, measuring 4.125 inches by 9.5 inches. Other standard sizes include:

- #9: 3.875 inches by 8.875 inches
- #6 3/4: 3.625 inches by 6.5 inches
- #11: 4.5 inches by 10.5 inches

These sizes are designed for compatibility with standard paper and automated mailing systems.





a7 envelope size


The A7 envelope size is 74 mm by 105 mm, based on the ISO 216 standard. This is equivalent to approximately 2.9 inches by 4.1 inches.





a1 envelope size


The A1 envelope size is based on the ISO A1 paper standard, measuring approximately 594 mm x 841 mm (23.4 inches x 33.1 inches). It is designed to hold A1 paper with some extra space for sealing and mailing.





a2 envelope size


A2 envelope size refers to a standard size commonly used for greeting cards, invitations, and announcements. It measures approximately 4.375 inches by 5.75 inches (111 mm by 146 mm) in the US system, which is suitable for enclosing A2-sized cards or folded A4 paper. This size is not part of the official ISO A series but is widely recognized in stationery contexts.





a6 envelope size


A6 envelopes are typically sized at 114 mm x 162 mm, designed to hold A6 paper (105 mm x 148 mm) with some extra space for insertion and sealing.