GREATEST HITS by BILLY OCEAN has sold 1,407,500 copies in Canada, New Zealand, United Kingdom and United States.
GREATEST HITS certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Canada |
100,000 | 1x Platinum | 1991 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1991
|
 New Zealand |
7,500 | 1x Gold |
New Zealand Sales: 7,500
Certification / note: 1x Gold
Certification Date / sales as of:
|
|
 United Kingdom |
300,000 | 1x Platinum | 13 December, 1989 |
United Kingdom Sales: 300,000
Certification / note: 1x Platinum
Certification Date / sales as of: 13 December, 1989
|
 United States |
1,000,000 | 1x Platinum | 1 February, 1995 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1 February, 1995
|
| Total sales | 1,407,500 | (in 4 countries) |
Total
Sales: 1,407,500
(in 4 countries)
|
Year-end chart performance for GREATEST HITS
| Chart 1989 | Rank | Sales |
| UK Albums (Music Week) |
61 | 270,000 |
| UK Artist Albums |
47 | |
| Chart 1993 | Rank | Sales |
| New Zealand Albums (RMNZ) |
39 |