Base Size

inch

×

cm

×

Units:

Important Note:

For practical measuring and cutting purposes:

Imperial measurements are shown in ⅛ inch fractions
Metric measurements are rounded to the nearest millimeter

More precise decimal values can be found in the calculator view.

About Privacy Policy Terms & Conditions

About Privacy Policy Terms & Conditions

#9

US Envelope Sizes

22.5 × 9.8 cm

8 ⅞ x 3 ⅞ inches

22.5cm

8 ⅞ inches

9.8cm

3 ⅞ inches