666 by HYDE has sold 118,487 copies in Japan and Korea.
666 certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
100,000 | 1x Gold | December 2003 |
Japan Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: December 2003
|
 Korea |
18,487 | RIAK / Gaon charts |
Korea Sales: 18,487
Certification / note: RIAK / Gaon charts
Certification Date / sales as of:
|
|
| Total sales | 118,487 | (in 2 countries) |
Total
Sales: 118,487
(in 2 countries)
|
Year-end chart performance for 666
| Chart 2004 | Rank | Sales |
| South Korean International Albums (Gaon) |
23 | 18,487 |