THE REASON by HOOBASTANK has sold 2,440,000 copies in 7 countries. The album sold best in United States (2,000,000 copies), Canada (100,000 copies) and France (100,000 copies).
THE REASON certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
35,000 | 1x Gold |
Australia Sales: 35,000
Certification / note: 1x Gold
Certification Date / sales as of:
|
|
 Canada |
100,000 | 1x Platinum | 2004 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 2004
|
 France |
100,000 | 1x Gold | 7 September, 2004 |
France Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 7 September, 2004
|
 Japan |
100,000 | 1x Gold | December 2004 |
Japan Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: December 2004
|
 Singapore |
5,000 | 1x Gold | 2020 |
Singapore Sales: 5,000
Certification / note: 1x Gold
Certification Date / sales as of: 2020
|
 United Kingdom |
100,000 | 1x Gold | 22 July, 2013 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 22 July, 2013
|
 United States |
2,000,000 | 2x Platinum | 25 August, 2004 |
United States Sales: 2,000,000
Certification / note: 2x Platinum
Certification Date / sales as of: 25 August, 2004
|
| Total sales | 2,440,000 | (in 7 countries) |
Total
Sales: 2,440,000
(in 7 countries)
|
