According to Shania Twain official site, THE WOMAN IN ME by SHANIA TWAIN has sold 20,000,000 copies worldwide. The album sold best in United States (12,000,000 copies), Canada (2,000,000 copies) and United Kingdom (300,000 copies).
THE WOMAN IN ME certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
210,000 | 3x Platinum |
Australia Sales: 210,000
Certification / note: 3x Platinum
Certification Date / sales as of:
|
|
 Canada |
2,000,000 | 2x Diamond | 1999 |
Canada Sales: 2,000,000
Certification / note: 2x Diamond
Certification Date / sales as of: 1999
|
 United Kingdom |
300,000 | 1x Platinum | 14 April, 2000 |
United Kingdom Sales: 300,000
Certification / note: 1x Platinum
Certification Date / sales as of: 14 April, 2000
|
 United States |
12,000,000 | 12x Platinum | 1 December, 2000 |
United States Sales: 12,000,000
Certification / note: 12x Platinum
Certification Date / sales as of: 1 December, 2000
|
| Worldwide sales | 20,000,000 | Shania Twain official site |
Total
Sales: 20,000,000
Source: Shania Twain official site
|
Year-end chart performance for THE WOMAN IN ME
| Chart 1995 | Rank | Sales |
| Canadian Albums (RPM) |
8 | |
| US Albums (Billboard 200) |
19 | |
| US Albums (Soundscan) |
10 | 2,800,000 |
| Chart 1996 | Rank | Sales |
| Canadian Albums (RPM) |
24 | |
| US Albums (Billboard 200) |
6 | |
| US Albums (Soundscan) |
9 | 2,800,000 |
| Chart 1997 | Rank | Sales |
| Australian Albums (ARIA) |
60 | |
| US Albums (Billboard 200) |
147 | |
| Chart 2000 | Rank | Sales |
| UK Albums |
65 | 230,000 |
Decade-end chart performance for THE WOMAN IN ME
| Chart 1990's | Rank |
| US Albums (Billboard 200) |
38 |