NOW THAT'S WHAT I CALL MUSIC! 73 by NOW SERIES (UK) has sold 630,000 copies in Ireland and United Kingdom.
NOW THAT'S WHAT I CALL MUSIC! 73 certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Ireland |
30,000 | 2x Platinum | 2009 |
Ireland Sales: 30,000
Certification / note: 2x Platinum
Certification Date / sales as of: 2009
|
 United Kingdom |
600,000 | 2x Platinum | 22 July, 2013 |
United Kingdom Sales: 600,000
Certification / note: 2x Platinum
Certification Date / sales as of: 22 July, 2013
|
| Total sales | 630,000 | (in 2 countries) |
Total
Sales: 630,000
(in 2 countries)
|
Year-end chart performance for NOW THAT'S WHAT I CALL MUSIC! 73
| Chart 2009 | Rank |
| Irish Albums (IRMA) |
14 |