MARS by B'Z has sold 1,734,540 copies in Japan.
MARS certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
1,734,540 | 4x Platinum | December 1992 |
Japan Sales: 1,734,540
Certification / note: 4x Platinum
Certification Date / sales as of: December 1992
|
| Total sales | 1,734,540 | (in 1 country) |
Total
Sales: 1,734,540
(in 1 country)
|
Year-end chart performance for MARS
| Chart 1991 | Rank | Sales |
| Japanese Albums (Oricon) |
3 | 1,388,850 |
| Chart 1992 | Rank | Sales |
| Japanese Albums (Oricon) |
59 | 296,310 |