Republic Records, reported Lover sold nearly one million copies before its release. In the U.S., the album sold around 450,000 copies in its first day and debuted at number one on the Billboard 200 with first-week tally of 867,000 album-equivalent units, of which 679,000 were pure sales. It is Swift's sixth U.S. number-one album and made her the first female artist to have six albums sell more than 500,000 copies each in one week. In its opening week, Lover outsold all of the other 199 albums on the chart combined, becoming the first album to do so since Swift's Reputation (2017). All of Lover 18 tracks simultaneously charted on the Billboard Hot 100, breaking the record for the most simultaneous chart entries for a female artist. With Lover, Swift returned to the top of the Billboard Artist 100 chart for a thirty-seventh week, extending her all-time record as the longest-running number-one act. The Recording Industry Association of America (RIAA) certified Lover platinum, denoting one million album-equivalent units, after four weeks of release. The only million-selling U.S. album of 2019, it sold 1.085 million pure copies, both physical and digital, becoming the year's best-selling album. It was the fourth time Swift had the best-selling album of a calendar year in the U.S., after Fearless (2009), 1989 (2014), and Reputation (2017). Combining singles sales and streaming, Lover sold 2.191 million units throughout the year. By October 2022, the RIAA certified it triple-platinum and it had sold 1.5 million pure copies in the U.S. The album peaked atop the charts in Australia, New Zealand, the U.K. (including Scotland), Ireland, and Canada; and received platinum certifications in Australia, New Zealand, and the U.K.— including a double platinum certification by Australian Recording Industry Association (ARIA). Lover is Swift's fifth number-one album in Australia, making her the artist with the most Australian number-one albums of the 2010s decade. In both the U.K. and Ireland, it made Swift the first female artist in the 2010s to have four number-one albums. Lover also peaked atop the albums charts of Latvia, Lithuania, the Netherlands, Norway, Portugal, Spain, and Sweden. In China, Lover became the first international album to sell more than one million units within its first release week, and made Swift the first international artist to have three million-selling albums, after 1989 and Reputation. Lover sold more than 3.2 million copies worldwide in 2019, becoming the year's best-selling