On the week ending June 21, 2008, "7 Things" debuted at number 85 on the Billboard Hot 100. The song ascended to number seventy the week ending July 5, 2008, before jumping to number 10 in its third week due to sales of 130,000 digital downloads. "7 Things" moved up to number nine on the week ending July 26, 2008, surpassing "See You Again" and becoming Cyrus' best charting effort on the Hot 100. The single managed to spend fifteen weeks on the Hot 100, and was ranked at number 92 in the Year-End in 2008. "7 Things" also peaked at number 14 on the now-canceled Pop 100 chart. In Canada, the song debuted at number 40 on the week ending July 5, 2008, and peaked at number 13 on the week ending July 26, 2008. As of March 2023, "7 Things" has sold 2,000,000 units in the United States and was certified two-times platinum by the Recording Industry Association of America (RIAA).
