#1'S by MARIAH CAREY has sold 11,738,067 copies in 37 countries. The album sold best in United States (6,000,000 copies), Japan (3,000,000 copies) and France (600,000 copies).
#1'S certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Argentina |
30,000 | 1x Gold |
Argentina Sales: 30,000
Certification / note: 1x Gold
Certification Date / sales as of:
|
|
 Australia |
140,000 | 2x Platinum | 2019 |
Australia Sales: 140,000
Certification / note: 2x Platinum
Certification Date / sales as of: 2019
|
 Belgium |
25,000 | 1x Gold |
Belgium Sales: 25,000
Certification / note: 1x Gold
Certification Date / sales as of:
|
|
 Brazil |
100,000 | 1x Gold | 1999 |
Brazil Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 1999
|
 Canada |
300,000 | 3x Platinum | 2000 |
Canada Sales: 300,000
Certification / note: 3x Platinum
Certification Date / sales as of: 2000
|
 France |
600,000 | 2x Platinum | 9 November, 1999 |
France Sales: 600,000
Certification / note: 2x Platinum
Certification Date / sales as of: 9 November, 1999
|
 Germany |
250,000 | 1x Gold | 1999 |
Germany Sales: 250,000
Certification / note: 1x Gold
Certification Date / sales as of: 1999
|
 Japan |
3,000,000 | 3x Million | December 1998 |
Japan Sales: 3,000,000
Certification / note: 3x Million
Certification Date / sales as of: December 1998
|
 Korea |
138,067 | RIAK / Gaon charts |
Korea Sales: 138,067
Certification / note: RIAK / Gaon charts
Certification Date / sales as of:
|
|
 Netherlands |
50,000 | 1x Gold | 1998 |
Netherlands Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 1998
|
 New Zealand |
30,000 | 2x Platinum |
New Zealand Sales: 30,000
Certification / note: 2x Platinum
Certification Date / sales as of:
|
|
 Norway |
25,000 | 1x Gold | 1999 |
Norway Sales: 25,000
Certification / note: 1x Gold
Certification Date / sales as of: 1999
|
 Spain |
100,000 | 1x Platinum | 1999 |
Spain Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1999
|
 Sweden |
80,000 | 1x Platinum | 14 June, 1999 |
Sweden Sales: 80,000
Certification / note: 1x Platinum
Certification Date / sales as of: 14 June, 1999
|
 Switzerland |
50,000 | 1x Platinum | 1998 |
Switzerland Sales: 50,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1998
|
 United Kingdom |
300,000 | 1x Platinum | 27 November, 1998 |
United Kingdom Sales: 300,000
Certification / note: 1x Platinum
Certification Date / sales as of: 27 November, 1998
|
 United States |
6,000,000 | 6x Platinum | November 17, 2022 |
United States Sales: 6,000,000
Certification / note: 6x Platinum
Certification Date / sales as of: November 17, 2022
|
 Europe (IFPI) |
2,000,000 | 2x Platinum | 2003 |
Europe (IFPI) Sales: 2,000,000
Certification / note: 2x Platinum
Certification Date / sales as of: 2003
|
| Total sales | 11,738,067 | (in 37 countries) |
Total
Sales: 11,738,067
(in 37 countries)
|
Year-end chart performance for #1'S
| Chart 1998 | Rank | Sales |
| Australian Albums (ARIA) |
43 | >70,000 |
| Belgian Albums (Ultratop Flanders) |
62 | |
| Belgian Albums (Ultratop Wallonia) |
55 | |
 Italian Albums (Musica & Dischi) |
13 | 300,000 |
| Japanese Albums (Oricon) |
24 | 1,046,710 |
| Spanish Albums (PROMUSICAE) |
45 | |
| Swedish Albums (Sverigetopplistan) |
63 | >40,000 |
| UK Albums |
36 | 390,000 |
| US Albums (Soundscan) |
36 | 1,700,000 |
| Chart 1999 | Rank | Sales |
 Austrian Albums (Ö3 Austria) |
43 | |
| Belgian Albums (Ultratop Flanders) |
64 | |
| Belgian Albums (Ultratop Wallonia) |
25 | |
| Canadian Albums (RPM) |
67 | |
 Danish Albums (Hitlisten) |
90 | |
| Dutch Albums (Album Top 100) |
62 | |
 European Albums (Music & Media) |
32 | |
| German Albums (Offizielle Top 100) |
35 | |
| Japanese Albums (Oricon) |
11 | 1,737,190 |
| Swedish Albums (Sverigetopplistan) |
99 | |
| Swiss Albums (Schweizer Hitparade) |
29 | |
| UK Albums |
141 | 130,000 |
| US Albums (Billboard 200) |
19 | |
| US Albums (Soundscan) |
70 | 1,200,000 |