WELCOME TO MY NIGHTMARE by ALICE COOPER has sold 1,400,000 copies in Australia, Canada, United Kingdom and United States.
WELCOME TO MY NIGHTMARE certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
140,000 | 2x Platinum | NOVEMBER 1996 |
Australia Sales: 140,000
Certification / note: 2x Platinum
Certification Date / sales as of: NOVEMBER 1996
|
 Canada |
200,000 | 2x Platinum | 1979 |
Canada Sales: 200,000
Certification / note: 2x Platinum
Certification Date / sales as of: 1979
|
 United Kingdom |
60,000 | 1x Silver | 1 December, 1975 |
United Kingdom Sales: 60,000
Certification / note: 1x Silver
Certification Date / sales as of: 1 December, 1975
|
 United States |
1,000,000 | 1x Platinum | 14 August, 1990 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 14 August, 1990
|
| Total sales | 1,400,000 | (in 4 countries) |
Total
Sales: 1,400,000
(in 4 countries)
|
Year-end chart performance for WELCOME TO MY NIGHTMARE
| Chart 1975 | Rank |
| Australian Albums (Kent Music Report) |
21 |
| Canadian Albums (RPM) |
13 |
| US Albums (Billboard 200) |
23 |