ONE IN A MILLION by AALIYAH has sold 2,150,000 copies in Canada, United Kingdom and United States.
ONE IN A MILLION certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Canada |
50,000 | 1x Gold | 1997 |
Canada Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 1997
|
 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 | 16 June, 1997 |
United States Sales: 2,000,000
Certification / note: 2x Platinum
Certification Date / sales as of: 16 June, 1997
|
| Total sales | 2,150,000 | (in 3 countries) |
Total
Sales: 2,150,000
(in 3 countries)
|