No. 10 Envelope

Most common US business envelope.

US Envelopes / 104.8 x 241.3 mmBack to Family
Dimensions in inches and centimeters

Portrait

4.13 in x 9.50 in

10.48 cm x 24.13 cm

Landscape

9.50 in x 4.13 in

24.13 cm x 10.48 cm

Dimensions Table

Specs

Swipe to see all measurements

OrientationMillimetersInchesPixels (300 dpi)
Portrait104.8 x 241.34.13 in x 9.50 in1238 px x 2850 px
Landscape241.3 x 104.89.50 in x 4.13 in2850 px x 1238 px

At a glance

FamilyUS Envelopes
Aspect ratio (W/H)0.434
Area25,288 mm²
Aliases4.125 x 9.5 in

No. 10 Envelope Facts & References

Deep Dive
  1. No. 10 Envelope measures 104.8 x 241.3 mm (10.48 x 24.13 cm).
  2. Total surface area is 25,288 mm² (39.20 in²).
  3. Approximate diagonal is 10.36 inches, useful when checking fit inside sleeves or packaging.
  4. Supports common business mail streams and direct-mail insertion flows.