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of 20 or 24 pounds (9.1 or 10.9 kg) – the weight of 500 sheets (a ream) of 17-by-22-inch (431.8 by 558.8 mm) paper at 70 °F (21 °C) and at 50% humidity. One ream of 20-pound Letter-sized paper weighs 5 pounds (2.3 kg), and a single Letter-sized sheet of 20-pound paper weighs
109:
made Letter-size paper the norm for US federal forms in the early 1980s; previously, the smaller "official" Government Letter size, 8 by 10.5 inches (203.2 by 266.7 mm) (aspect ratio: 1.3125), was used in government, while 8.5-by-11-inch (215.9 by 279.4 mm) paper was standard in most other
188:
size, which since pre-modern times refers to page sizes of 8 to 9 inches (200 to 230 mm) wide and 10 to 11 inches (250 to 280 mm) high, and it is indeed almost exactly one quarter of the old
Imperial (British) paper size known as
269:"US Letter" is the primary paper size used in Belize, Canada, Chile, Colombia, Costa Rica, El Salvador, Guatemala, Mexico, Nicaragua, Panama, Philippines, Puerto Rico, United States, Venezuela according to
157:. Some metric information is typically included on American ream packaging. For example, 20-pound paper is also labeled as 75 g/m. The most common density of A4 paper is 80 g/m.
281:
94:
173:
66:
46:
Comparison of Letter (shaded light blue) and
Government letter sizes with some similar paper and photographic paper sizes
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standard at 210 mm × 297 mm (8.27 in × 11.7 in) used by most other countries, defined in
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349:
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180:, the 11-inch length of the standard paper being about a quarter of "the average maximum stretch of an experienced
164:(colloquially Half Letter) is exactly one half of the US Letter size: 8.5 by 5.5 inches (215.9 by 139.7 mm).
172:
The precise origins of the dimensions of US letter-size paper (8.5 × 11 in) are not known. The
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8:
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85:. It measures 8.5 by 11 inches (215.9 by 279.4 mm) and is similar in use to the
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says that the standard US dimensions have their origin in the days of manual
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Blocksma, Mary. Reading the
Numbers. New York: Penguin Books, 1989.
184:'s arms". The letter size falls within the range of the historical
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86:
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90:
26:
185:
74:
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0.16 ounces (4.536 g), which is equivalent to 75.19
69:, commonly used as home or office stationery primarily in the
34:
144:
In the US, paper density is usually measured in "pound per
307:"Why is the standard paper size in the U.S. 8 ½" x 11"?"
363:
148:" (of 500 sheets). Typical Letter paper has a
95:International Organization for Standardization
30:Letter paper tiled with equilateral triangles
141:≈ 13.901 inches (353.1 mm) in length.
221:inches (440 by 570 mm) – allowing a
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305:American Forest and Paper Association.
174:American Forest & Paper Association
364:
300:
298:
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67:American National Standards Institute
344:. London: Studio Vista. p. 74.
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263:
13:
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231:inch (13 mm) for trimming.
160:The related paper size known as
284:from the original on 2024-05-03
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16:Paper size of 8.5 by 11 inches
1:
277:Common Locale Data Repository
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7:
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10:
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18:
19:Not to be confused with
340:Fyffe, Charles (1969).
272:"Territory Information"
251:Paper size#Loose sizes
81:, and variably across
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39:
31:
150:basis weight of paper
107:Reagan administration
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37:
29:
372:Mechanical standards
313:on February 20, 2012
61:standard defined in
280:. 45. 2024-04-16.
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38:A Letter-size page
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342:Basic Copyfitting
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309:. Archived from
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130:≈ 1.294 and the
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241:ANSI/ASME Y14.1
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63:ANSI/ASME Y14.1
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110:offices. The
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83:Latin America
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71:United States
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315:. Retrieved
311:the original
286:. Retrieved
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159:
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112:aspect ratio
104:
54:
53:(officially
50:
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21:Letter sheet
191:demy quarto
178:papermaking
79:Philippines
377:Stationery
366:Categories
317:2014-02-20
288:2024-05-03
257:References
77:, and the
59:paper size
282:Archived
235:See also
138:8.5 + 11
132:diagonal
87:A4 paper
246:ISO 216
226:⁄
216:⁄
202:⁄
168:History
162:Invoice
136:√
128:
116:
101:Details
93:by the
91:ISO 216
65:by the
57:) is a
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186:quarto
182:vatman
75:Canada
55:ANSI A
51:Letter
146:reams
346:ISBN
105:The
207:by
155:g/m
134:is
114:is
368::
297:^
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209:22
195:17
193:–
125:17
119:22
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228:2
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
