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Speaker 1: Welcome to Brainstuff from house stuff works dot com, where

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Speaker 1: smart happens Him Marshall Brain with today's question, how much

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Speaker 1: does twenty pound bond paper way? When you go to

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Speaker 1: the store and buy a printer paper, it's normally described

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Speaker 1: as twenty pound bond paper, But what does that actually mean?

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Speaker 1: The way we talk about paper in the United States

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Speaker 1: is amazingly convoluted. The short answer is that five hundred

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Speaker 1: sheets of bond paper with the size of seventeen inches

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Speaker 1: by twenty two inches have a weight of twenty pounds.

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Speaker 1: The manufacturer would cut a sheet that big into four

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Speaker 1: letter sized sheets, so a five hundred sheet ream of

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Speaker 1: twenty pound bond paper actually weighs five pounds. Each sheet

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Speaker 1: of paper therefore weighs one one of a pound, or

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Speaker 1: about four and a half grams. If it was something

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Speaker 1: other than bond paper, then the size of the standard

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Speaker 1: sheet used to determine the weight might be different. For example,

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Speaker 1: bristol paper is heavier and stiffer, kind of like the

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Speaker 1: paper and a Manila file folder. It's standard sheet size

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Speaker 1: is twenty two and a half inches by twenty eight

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Speaker 1: and a half inches. In general, the more a sheet

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Speaker 1: of a certain grade of paper ways the thicker it is.

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Speaker 1: You can purchase twenty pound or twenty four pound bond

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Speaker 1: paper at the office supply store. The twenty four pound

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Speaker 1: bond paper is thicker, heavier, and more opaque than twenty

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Speaker 1: pound bond. The metrics system has a much better way

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Speaker 1: of measuring paper. A zero paper is a square meter

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Speaker 1: of paper. One side is eighty four point one centimeters long,

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Speaker 1: and the other is a hundred eighteen point nine centimeters.

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Speaker 1: The longer sides length is the square root of two

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Speaker 1: longer than the short sides length. A one paper is

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Speaker 1: half of an A zero sheet, preserving the square root

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Speaker 1: of two rule. A two paper is half of an

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Speaker 1: a one sheet, and so on, and paperweight is measured

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Speaker 1: in grams per square meters, so it's very easy to

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Speaker 1: figure things out. For more on this and thousands of

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Speaker 1: other topics, is it how stuff Works dot com