Frank Ocean’s surprise release “Blonde” debuted at No. 1 this week on the Billboard Top 200 album chart, racking up sales of 275,000 units, despite its not being released as an album in any physical format.
So what were those 275,000 units? Some 232,000 of them were paid digital album downloads, according to Nielsen Music. The other 43,000 consisted of “equivalent album units.”
An “equivalent album unit” (shouldn’t that be “album-equivalent unit?) is a metric devised by Billboard in 2014 to accounting for streaming activity and individual track downloads for charting purposes. Ten individual track downloads from an album as measured by Nielsen, or 1,500 on-demand streams of individual album tracks as reported to Billboard by the major streaming services, are counted as an equivalent album unit. In the case of Blonde, individual track downloads were not available at the time of the albums initial release, but they accrued 65 million streams. Dividing that 65 million by 1,500 yields 43,000 equivalent units. QED.