Correction for the weight of an American Football

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How heavy is 0.000003640 kilograms?

It's about one-one-hundred-thousandth as heavy as an American Football

The weight of an American Football is about 0.41106808531250 kilograms.

(a.k.a. "pigskin") (NFL standard)

Per National Football League official rules, an American football must weigh between 0.396893323750 kilograms and 0.4252428468750 kilograms. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.

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http://www.amazon.com/Official-Playing-Rules-NFL-2008/dp/1600781438/ref=sr_1_2?ie=UTF8&s=books&qid=1277626834&sr=8-2#reader_1600781438 

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Citations

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APA Style (7th Ed.)

The Measure of Things. (2024). Correction for the weight of an American Football. Retrieved April 16, 2024 from www.themeasureofthings.com/correction.php?comp=weight&unit=kgms&amt=3.64E-6&i=42

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MLA Style (8th Ed.)

"Correction for the weight of an American Football" The Measure of Things, 2024, www.themeasureofthings.com/correction.php?comp=weight&unit=kgms&amt=3.64E-6&i=42. Accessed 16 Apr 2024.

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Chicago Style (17th Ed.)

"Correction for the weight of an American Football." The Measure of Things. 2024. https://www.themeasureofthings.com/correction.php?comp=weight&unit=kgms&amt=3.64E-6&i=42.

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