DUETS: AN AMERICAN CLASSIC by TONY BENNETT has sold 2,350,000 copies in 6 countries. The album sold best in United States (2,000,000 copies), Canada (200,000 copies) and United Kingdom (100,000 copies).
DUETS: AN AMERICAN CLASSIC certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
35,000 | 1x Gold | NOVEMBER 2006 |
Australia Sales: 35,000
Certification / note: 1x Gold
Certification Date / sales as of: NOVEMBER 2006
|
 Canada |
200,000 | 2x Platinum | 2007 |
Canada Sales: 200,000
Certification / note: 2x Platinum
Certification Date / sales as of: 2007
|
 Ireland |
7,500 | 1x Gold | 2006 |
Ireland Sales: 7,500
Certification / note: 1x Gold
Certification Date / sales as of: 2006
|
 New Zealand |
7,500 | 1x Gold |
New Zealand Sales: 7,500
Certification / note: 1x Gold
Certification Date / sales as of:
|
|
 United Kingdom |
100,000 | 1x Gold | 3 November, 2006 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 3 November, 2006
|
 United States |
2,000,000 | 2x Platinum | 12 February, 2021 |
United States Sales: 2,000,000
Certification / note: 2x Platinum
Certification Date / sales as of: 12 February, 2021
|
| Total sales | 2,350,000 | (in 6 countries) |
Total
Sales: 2,350,000
(in 6 countries)
|
Year-end chart performance for DUETS: AN AMERICAN CLASSIC
| Chart 2006 | Rank | Sales |
| UK Albums (Charts Plus) |
131 | |
| US Albums (Billboard 200) |
86 | |
| US Albums (Soundscan) |
28 | 1,309,000 |
 Worldwide Albums (IFPI Global Music Report) |
30 | 2,300,000 |
| Chart 2007 | Rank | Sales |
| US Albums (Billboard 200) |
47 |