MY DECEMBER by KELLY CLARKSON has sold 1,244,638 copies in 6 countries. The album sold best in United States (1,000,000 copies), Canada (100,000 copies) and United Kingdom (100,000 copies).
MY DECEMBER certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
35,000 | 1x Gold | JUNE 2007 |
Australia Sales: 35,000
Certification / note: 1x Gold
Certification Date / sales as of: JUNE 2007
|
 Canada |
100,000 | 1x Platinum | 2007 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 2007
|
 Ireland |
7,500 | 1x Gold | 2007 |
Ireland Sales: 7,500
Certification / note: 1x Gold
Certification Date / sales as of: 2007
|
 Korea |
2,138 | RIAK / Gaon charts |
Korea Sales: 2,138
Certification / note: RIAK / Gaon charts
Certification Date / sales as of:
|
|
 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 |
1,000,000 | 1x Platinum | 12 December, 2007 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 12 December, 2007
|
| Total sales | 1,244,638 | (in 6 countries) |
Total
Sales: 1,244,638
(in 6 countries)
|
Year-end chart performance for MY DECEMBER
| Chart 2007 | Rank | Sales |
| Australian Albums (ARIA) |
53 | >35,000 |
| UK Albums (Charts Plus) |
129 | |
| US Albums (Billboard 200) |
66 | |
 Worldwide Albums (IFPI Global Music Report) |
46 | 1,600,000 |