IN RAINBOWS by RADIOHEAD has sold 1,650,000 copies in 49 countries. The album sold best in United States (950,000 copies), United Kingdom (300,000 copies) and Canada (100,000 copies).
IN RAINBOWS certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Belgium |
15,000 | 1x Gold | 2008 |
Belgium Sales: 15,000
Certification / note: 1x Gold
Certification Date / sales as of: 2008
|
 Canada |
100,000 | 1x Platinum | 2009 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 2009
|
 Japan |
100,000 | 1x Gold | December 2007 |
Japan Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: December 2007
|
 United Kingdom |
300,000 | 1x Platinum | 20 October, 2017 |
United Kingdom Sales: 300,000
Certification / note: 1x Platinum
Certification Date / sales as of: 20 October, 2017
|
 United States |
950,000 | 1x Gold | 17 March, 2008 |
United States Sales: 950,000
Certification / note: 1x Gold
Certification Date / sales as of: 17 March, 2008
|
 Europe (IMPALA) |
500,000 | 1x Platinum |
Europe (IMPALA) Sales: 500,000
Certification / note: 1x Platinum
Certification Date / sales as of:
|
|
| Total sales | 1,650,000 | (in 49 countries) |
Total
Sales: 1,650,000
(in 49 countries)
|
Year-end chart performance for IN RAINBOWS
| Chart 2008 | Rank | Sales |
 Australian Albums (ARIA) |
85 | |
| Belgian Albums (Ultratop Flanders) |
20 | |
| Belgian Albums (Ultratop Wallonia) |
55 | |
 Dutch Albums (Album Top 100) |
61 | |
 French Albums (SNEP) |
61 | |
 Italian Albums (FIMI) |
50 | |
| Japanese Albums (Oricon) |
87 | 129,292 |
 Norwegian Albums (VG-Lista) |
64 | |
 Swiss Albums (Schweizer Hitparade) |
79 | |
| UK Albums (Charts Plus) |
76 | 192,500 |
| US Albums (Billboard 200) |
60 |
Decade-end chart performance for IN RAINBOWS
| Chart 2010's | Rank |
| UK Vinyl Albums (OCC) |
92 |