REGULAR-IRREGULAR / REGULATE by NCT 127 has sold 564,927 copies in Korea.
REGULAR-IRREGULAR / REGULATE certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Korea |
564,927 | RIAK / Gaon charts | January 2022 |
Korea Sales: 564,927
Certification / note: RIAK / Gaon charts
Certification Date / sales as of: January 2022
|
| Total sales | 564,927 | (in 1 country) |
Total
Sales: 564,927
(in 1 country)
|
Year-end chart performance for REGULAR-IRREGULAR / REGULATE
| Chart 2018 | Rank | Sales |
| South Korean Albums (Gaon) First issue Regular-Irregular |
17 | 292,341 |
| South Korean Albums (Gaon) Repackage Regulate |
29 | 157,809 |