PART III by 112 has sold 1,145,000 copies in Australia, Canada, United Kingdom and United States.
PART III certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
35,000 | 1x Gold | APRIL 2002 |
Australia Sales: 35,000
Certification / note: 1x Gold
Certification Date / sales as of: APRIL 2002
|
 Canada |
50,000 | 1x Gold | 2001 |
Canada Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 2001
|
 United Kingdom |
60,000 | 1x Silver | 22 July, 2013 |
United Kingdom Sales: 60,000
Certification / note: 1x Silver
Certification Date / sales as of: 22 July, 2013
|
 United States |
1,000,000 | 1x Platinum | 16 May, 2001 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 16 May, 2001
|
| Total sales | 1,145,000 | (in 4 countries) |
Total
Sales: 1,145,000
(in 4 countries)
|
Year-end chart performance for PART III
| Chart 2001 | Rank | Sales |
| Canadian Albums (SoundScan) |
96 | |
| US Albums (Billboard 200) |
45 | |
| US Albums (Soundscan) |
40 | 1,690,000 |
| Chart 2013 | Rank | Sales |
 Swedish Music DVD (Sverigetopplistan) |
37 |