Infinity on High with a 54% decline during a post-Grammy week. The album rose to number three in its third week with 79,000 units sold. In its fourth week, the disc slipped to number four and sold 67,000 copies. "Infinity on High"s sales again fell in its fifth week, moving 58,000 copies and descending to number eight on the chart. In its sixth and last week in the top ten it fell to number nine and sold 43,000 copies. In April 2007, the album was certified Platinum by the Recording Industry Association of America (RIAA), denoting the shipment of one million copies. It
Infinity on High the US to date February 2013. It was the band's first US number one album and second consecutive top ten effort, as its previous release, "From Under the Cork Tree", peaked at number nine. The album spent its first six weeks in the top ten, out of a total of fifty two chart weeks. "Infinity on High" also opened at number one on "Billboard"'s Rock Albums, Tastemaker Albums, and Digital Albums charts, with over 27,000 digital sales making up the total first week tally. In its second week, it fell to number five on the "Billboard" 200, selling 119,000 copies