Correction for the weight of an American Football
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How heavy is 4,873.5130 carats?
It's about two-and-a-half times as heavy as an American Football
The weight of an American Football is about 2,003.2894736880 carats.
(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 1,934.2105263190 carats and 2,072.3684210560 carats. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.