PAPER ATLAS

No. 9 Envelope

Reply and insert envelope format.

US Envelopes / 98.4 x 225.4 mmBack to Family
Dimensions in inches and centimeters

Portrait

3.87 in x 8.87 in

9.84 cm x 22.54 cm

Landscape

8.87 in x 3.87 in

22.54 cm x 9.84 cm

Dimensions Table

Specs

Swipe to see all measurements

OrientationMillimetersInchesPixels (300 dpi)
Portrait98.4 x 225.43.87 in x 8.87 in1162 px x 2662 px
Landscape225.4 x 98.48.87 in x 3.87 in2662 px x 1162 px

At a glance

FamilyUS Envelopes
Aspect ratio (W/H)0.437
Area22,179 mm²
Aliases3.875 x 8.875 in

No. 9 Envelope Facts & References

Deep Dive
  1. No. 9 Envelope measures 98.4 x 225.4 mm (9.84 x 22.54 cm).
  2. Total surface area is 22,179 mm² (34.38 in²).
  3. Approximate diagonal is 9.68 inches, useful when checking fit inside sleeves or packaging.
  4. Supports common business mail streams and direct-mail insertion flows.

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