# item.guide
Side-by-Side Comparison North American (ANSI & Arch)

US Executive vs. US Letter

Comparing 2 standards across 10 specifications. 10 key differences identified.

Comparing:
US Executive
US Letter

US Executive (also known as Monarch) is a traditional North American stationery paper size measuring 7.25 × 10.5 inches (184.2 × 266.7 mm). Slightly more compact than US Letter, it is standard for formal corporate executive stationery, personalized social letterheads, and luxury correspondence pads.

View full US Executive spec sheet →

US Letter (ANSI A) is the standard business and consumer paper size in the United States, Canada, and parts of Mexico, measuring exactly 8.5 × 11.0 inches (215.9 × 279.4 mm). Standardized under ANSI/ASME Y14.1, it is slightly wider and shorter than the international ISO 216 A4 format.

View full US Letter spec sheet →

Specification Comparison Table

10 Parameters
Parameter / Spec
Width × Height (Imperial)
7.25 × 10.50 in 8.50 × 11.00 in
Width × Height (Metric)
184.2 × 266.7 mm 215.9 × 279.4 mm
Aspect Ratio
1 : 1.4483 (29 : 42) 1 : 1.2941 (17 : 22 — not √2)
Matching Envelope
Monarch Envelope (3.875 × 7.50 in / 98.4 × 190.5 mm)
Surface Area Comparison
Approx. 81% of the surface area of standard US Letter
Primary Applications
C-suite executive letterhead stationery, formal invitations, personal memo stationery
ANSI Series Designation
ANSI A (Base engineering format)
Comparison to ISO A4
US Letter is 5.9 mm wider and 17.6 mm shorter than A4 (210 × 297 mm)
Standard Office Weight
20 lb Bond (approx. 75 gsm) or 24 lb Bond (approx. 90 gsm)
Matching Envelope Standard
US #10 Envelope (4.125 × 9.50 in / 104.8 × 241.3 mm)