Base Size

inch

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mm

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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.

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A9

US Envelope Sizes

222 x 146mm

8 ¾ x 5 ¾ inches

222mm

8 ¾ inches

146mm

5 ¾ inches