According to Warner Music Japan, SEAL by SEAL has sold 3,000,000 copies worldwide. The album sold best in United States (1,000,000 copies), United Kingdom (600,000 copies) and Canada (300,000 copies).
SEAL certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
35,000 | 1x Gold | AUGUST 1994 |
Australia Sales: 35,000
Certification / note: 1x Gold
Certification Date / sales as of: AUGUST 1994
|
 Austria |
25,000 | 1x Gold | 25 July, 1994 |
Austria Sales: 25,000
Certification / note: 1x Gold
Certification Date / sales as of: 25 July, 1994
|
 Brazil |
100,000 | 1x Gold | 1997 |
Brazil Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 1997
|
 Canada |
300,000 | 3x Platinum | 1996 |
Canada Sales: 300,000
Certification / note: 3x Platinum
Certification Date / sales as of: 1996
|
 France |
200,000 | 2x Gold | 17 December, 2003 |
France Sales: 200,000
Certification / note: 2x Gold
Certification Date / sales as of: 17 December, 2003
|
 Germany |
250,000 | 1x Gold | 1992 |
Germany Sales: 250,000
Certification / note: 1x Gold
Certification Date / sales as of: 1992
|
 Netherlands |
50,000 | 1x Gold | 1991 |
Netherlands Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 1991
|
 New Zealand |
7,500 | 1x Gold |
New Zealand Sales: 7,500
Certification / note: 1x Gold
Certification Date / sales as of:
|
|
 Switzerland |
50,000 | 1x Platinum | 1991 |
Switzerland Sales: 50,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1991
|
 United Kingdom |
600,000 | 2x Platinum | 1 December, 1991 |
United Kingdom Sales: 600,000
Certification / note: 2x Platinum
Certification Date / sales as of: 1 December, 1991
|
 United States |
1,000,000 | 1x Platinum | 29 April, 1994 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 29 April, 1994
|
| Worldwide sales | 3,000,000 | Warner Music Japan |
Total
Sales: 3,000,000
Source: Warner Music Japan
|
Year-end chart performance for SEAL
| Chart 1991 | Rank | Sales |
| Austrian Albums (Ö3 Austria) |
21 | |
| Canadian Albums (RPM) |
93 | |
| Dutch Albums (Album Top 100) |
11 | |
 European Albums (Music & Media) |
19 | |
| German Albums (Offizielle Top 100) |
45 | |
| New Zealand Albums (RMNZ) |
23 | |
| Swiss Albums (Schweizer Hitparade) |
21 | |
| UK Albums |
11 | |
| Chart 1992 | Rank | Sales |
| UK Albums |
60 | |
| UK Artist Albums |
49 | |
| Chart 1994 | Rank | Sales |
| German Albums (Offizielle Top 100) |
97 | |
| UK Albums |
46 | 280,000 |
| US Albums (Billboard 200) |
92 | |
| Chart 1995 | Rank | Sales |
| UK Albums |
62 | 260,000 |
| UK Artist Albums |
46 | |
| US Albums (Billboard 200) |
56 | |
| US Albums (Soundscan) |
48 | 1,300,000 |
| Chart 1996 | Rank | Sales |
| US Albums (Billboard 200) |
53 |