"Blood Sweat & Tears" was a commercial success in South Korea. It debuted at number one on the
Gaon Digital Chart for the chart issue dated October 9–15, 2016, becoming BTS' first domestic number one. The song also peaked at number one on the component
Download Chart, selling 198,987 digital units in its first week of release. "Blood Sweat & Tears" was the sixth best-performing song in October 2016 on the
Gaon Monthly Digital Chart, based on digital sales, streaming, and background music (instrumental track) downloads. The song peaked at number one on the US
Billboard World Digital Songs chart for the week of October 29, 2016, the band's second chart topper, following on from "
Fire" (2016). In Canada, the song led to BTS becoming the third Korean act to chart on the
Canadian Hot 100 by peaking at number 86, a new best for a K-pop group. Following the release of "Blood Sweat & Tears" as a single album in Japan, the single album topped the
Oricon Daily Singles Chart on its first day of release, selling 141,243 copies. "Blood Sweat & Tears" peaked at number one on the Oricon Weekly Singles Chart for the chart issue dated May 8–14, 2017, becoming BTS' second number one single on the chart. The single album sold 238,795 copies in its first week, making BTS the fastest foreign artist to surpass 200,000 copies in a week. In May 2017, the single sold 273,000 copies, achieving higher sales than the band's previous Japanese single album "
Run" (2016). For the year end chart, the former ranked as the 22nd best-selling single of 2017 in Japan. It also became the second-highest charting single by a Korean artist in the country, the first being BTS' eighth Japanese single, "
Mic Drop/
DNA / Crystal Snow" (2017) at number 13. "Blood Sweat & Tears" additionally charted at number one on the
Billboard Japan Hot 100 for the issue dated May 22, 2017, selling 310,276 copies. In February 2018, "Blood Sweat & Tears" was certified platinum by the
Recording Industry Association of Japan (RIAJ), denoting shipments of 250,000 copies in Japan. ==Music videos==