KNOW-IT-ALL by ALESSIA CARA has sold 1,340,000 copies in 7 countries. The album sold best in United States (1,000,000 copies), Canada (160,000 copies) and United Kingdom (100,000 copies).
KNOW-IT-ALL certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
35,000 | 1x Gold | 2019 |
Australia Sales: 35,000
Certification / note: 1x Gold
Certification Date / sales as of: 2019
|
 Canada |
160,000 | 2x Platinum | 12 May, 2021 |
Canada Sales: 160,000
Certification / note: 2x Platinum
Certification Date / sales as of: 12 May, 2021
|
 Denmark |
20,000 | 1x Platinum | 25 June, 2019 |
Denmark Sales: 20,000
Certification / note: 1x Platinum
Certification Date / sales as of: 25 June, 2019
|
 Norway |
20,000 | 1x Platinum | 28 October, 2020 |
Norway Sales: 20,000
Certification / note: 1x Platinum
Certification Date / sales as of: 28 October, 2020
|
 Singapore |
5,000 | 1x Gold | 2019 |
Singapore Sales: 5,000
Certification / note: 1x Gold
Certification Date / sales as of: 2019
|
 United Kingdom |
100,000 | 1x Gold | 4 February, 2022 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 4 February, 2022
|
 United States |
1,000,000 | 1x Platinum | 22 May, 2017 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 22 May, 2017
|
| Total sales | 1,340,000 | (in 7 countries) |
Total
Sales: 1,340,000
(in 7 countries)
|
Year-end chart performance for KNOW-IT-ALL
| Chart 2012 | Rank | Sales |
 Japanese Music Blu-ray (Oricon) |
2 | 56,000 |
| Japanese Music DVD (Oricon) |
7 | 155,000 |
| Chart 2016 | Rank | Sales |
| Canadian Albums (Billboard) |
22 | |
| Danish Albums (Hitlisten) |
61 | |
 Swedish Albums (Sverigetopplistan) |
64 | |
| US Albums (Billboard 200) |
42 | |
| Chart 2017 | Rank | Sales |
| Danish Albums (Hitlisten) |
72 | |
| Norwegian Albums (IFPI Norway) |
47 | |
| Swedish Albums (Sverigetopplistan) |
84 | |
| US Albums (Billboard 200) |
112 |