The $20 bill weighs about one gram, according to the U.S. Bureau of Engraving and Printing. It takes roughly 454 $20 bills to add up to 1 pound.
The front of the $20 bill has featured Andrew Jackson, the seventh President of the United States, since 1928. The White House is on the back of the bill. Grover Cleveland was featured on the $20 bill prior to Jackson. The Treasury Department has never indicated why the initially featured president was changed. Andrew Jackson was not a proponent of paper currency during his presidency. The $20 bill with Grover Cleveland debuted in 1914, and the note featured a steam locomotive on the reverse side.