SLIP OF THE TONGUE by WHITESNAKE has sold 1,200,000 copies in Japan, United Kingdom and United States.
SLIP OF THE TONGUE certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
100,000 | 1x Gold | July 1992 |
Japan Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: July 1992
|
 United Kingdom |
100,000 | 1x Gold | 17 November, 1989 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 17 November, 1989
|
 United States |
1,000,000 | 1x Platinum | 17 January, 1990 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 17 January, 1990
|
| Total sales | 1,200,000 | (in 3 countries) |
Total
Sales: 1,200,000
(in 3 countries)
|
Year-end chart performance for SLIP OF THE TONGUE
| Chart 1990 | Rank |
| US Albums (Billboard 200) |
44 |