HYDRA by TOTO has sold 675,530 copies in Canada, Japan and United States.
HYDRA certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Canada |
100,000 | 1x Platinum | 1979 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1979
|
 Japan |
75,530 | Oricon charts |
Japan Sales: 75,530
Certification / note: Oricon charts
Certification Date / sales as of:
|
|
 United States |
500,000 | 1x Gold | 6 March, 1980 |
United States Sales: 500,000
Certification / note: 1x Gold
Certification Date / sales as of: 6 March, 1980
|
| Total sales | 675,530 | (in 3 countries) |
Total
Sales: 675,530
(in 3 countries)
|
Year-end chart performance for HYDRA
| Chart 1980 | Rank |
| Canadian Albums (RPM) |
52 |
| US Albums (Billboard 200) |
67 |