CK5 by CRYSTAL KAY has sold 281,952 copies in Japan.
CK5 certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
281,952 | 1x Platinum | July 2004 |
Japan Sales: 281,952
Certification / note: 1x Platinum
Certification Date / sales as of: July 2004
|
| Total sales | 281,952 | (in 1 country) |
Total
Sales: 281,952
(in 1 country)
|
Year-end chart performance for CK5
| Chart 2004 | Rank | Sales |
| Japanese Albums (Oricon) |
57 | 251,458 |