According to the U.S. Department of the Treasury Bureau of Engraving and Printing, every note regardless of denomination is 1 gram. Since 454 grams are equal to 1 pound, 454 $20 notes equals 1 pound. Therefore, 1 pound of $20 bills equals $9,080.
On the front of the $20 note, Andrew Jackson, the seventh U.S. president, appears while the back shows the White House. The U.S. Department of the Treasury entered the newly designed $20 note into circulation in October 2003. Older notes are not devalued but removed from circulation over time. In addition, the Treasury sells 32-note uncut currency sheets in $1, $2, $5, $10 and $20 denominations.