Oricon Combined Singles Chart

The Oricon Combined Singles Chart (Japanese: オリコン合算シングルランキング, Hepburn: Orikon Gassan Shinguru Rankingu) is a record chart released weekly by Oricon, a major provider of information on the Japanese music industry. First published on December 24, 2018, it ranks the top fifty singles in Japan based on an album-equivalent unit system factoring physical CD sales, digital downloads, and streaming. It competes with the Billboard Japan Hot 100. Until 2015, Oricon only released charts based on physical CD sales.