WHAT IS LOVE? by TWICE has sold 432,848 copies in Korea.
WHAT IS LOVE? certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Korea |
432,848 | RIAK / Gaon charts | January 2022 |
Korea Sales: 432,848
Certification / note: RIAK / Gaon charts
Certification Date / sales as of: January 2022
|
| Total sales | 432,848 | (in 1 country) |
Total
Sales: 432,848
(in 1 country)
|
Year-end chart performance for WHAT IS LOVE?
| Chart 2018 | Rank | Sales |
 Japanese Albums (Oricon) |
58 | |
| South Korean Albums (Gaon) |
10 | 348,797 |
| Chart 2019 | Rank | Sales |
| South Korean Albums (Gaon) |
98 | 50,877 |