OCTAVE by MOODY BLUES has sold 1,200,000 copies in Canada, United Kingdom and United States.
OCTAVE certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Canada |
100,000 | 1x Platinum | 1978 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1978
|
 United Kingdom |
100,000 | 1x Gold | 18 September, 1978 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 18 September, 1978
|
 United States |
1,000,000 | 1x Platinum | 26 January, 1979 |
United States Sales: 1,000,000
Certification / note: 1x Platinum
Certification Date / sales as of: 26 January, 1979
|
| Total sales | 1,200,000 | (in 3 countries) |
Total
Sales: 1,200,000
(in 3 countries)
|
Year-end chart performance for OCTAVE
| Chart 1978 | Rank |
 Dutch Albums (Album Top 100) |
27 |
| UK Albums (Music Week) |
43 |