According to Universal Music Japan, PLEASE HAMMER DON'T HURT 'EM by MC HAMMER has sold 18,000,000 copies worldwide. The album sold best in United States (10,000,000 copies), Canada (800,000 copies) and United Kingdom (600,000 copies).
PLEASE HAMMER DON'T HURT 'EM certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
  Australia | 
                            70,000 | 1x Platinum | JANUARY 1991 | 
                                  AustraliaSales: 70,000 
                                    Certification / note: 1x Platinum 
                                    Certification Date / sales as of: JANUARY 1991 
                                 | 
                        
  Austria | 
                            25,000 | 1x Gold | 8 July, 1991 | 
                                  AustriaSales: 25,000 
                                    Certification / note: 1x Gold 
                                    Certification Date / sales as of: 8 July, 1991 
                                 | 
                        
  Canada | 
                            800,000 | 8x Platinum | 1991 | 
                                  CanadaSales: 800,000 
                                    Certification / note: 8x Platinum 
                                    Certification Date / sales as of: 1991 
                                 | 
                        
  France | 
                            100,000 | 1x Gold | 1991 | 
                                  FranceSales: 100,000 
                                    Certification / note: 1x Gold 
                                    Certification Date / sales as of: 1991 
                                 | 
                        
  Germany | 
                            250,000 | 1x Gold | 1991 | 
                                  GermanySales: 250,000 
                                    Certification / note: 1x Gold 
                                    Certification Date / sales as of: 1991 
                                 | 
                        
  Japan | 
                            559,160 | 2x Platinum | April 1991 | 
                                  JapanSales: 559,160 
                                    Certification / note: 2x Platinum 
                                    Certification Date / sales as of: April 1991 
                                 | 
                        
  Netherlands | 
                            50,000 | 1x Gold | 1991 | 
                                  NetherlandsSales: 50,000 
                                    Certification / note: 1x Gold 
                                    Certification Date / sales as of: 1991 
                                 | 
                        
  New Zealand | 
                            15,000 | 1x Platinum | 
                                  New ZealandSales: 15,000 
                                    Certification / note: 1x Platinum 
                                    Certification Date / sales as of:  
                                 | 
                        |
  Spain | 
                            100,000 | 1x Platinum | 1991 | 
                                  SpainSales: 100,000 
                                    Certification / note: 1x Platinum 
                                    Certification Date / sales as of: 1991 
                                 | 
                        
  Switzerland | 
                            25,000 | 1x Gold | 1990 | 
                                  SwitzerlandSales: 25,000 
                                    Certification / note: 1x Gold 
                                    Certification Date / sales as of: 1990 
                                 | 
                        
  United Kingdom | 
                            600,000 | 2x Platinum | 1 August, 1991 | 
                                  United KingdomSales: 600,000 
                                    Certification / note: 2x Platinum 
                                    Certification Date / sales as of: 1 August, 1991 
                                 | 
                        
  United States | 
                            10,000,000 | 10x Platinum | 15 April, 1991 | 
                                  United StatesSales: 10,000,000 
                                    Certification / note: 10x Platinum 
                                    Certification Date / sales as of: 15 April, 1991 
                                 | 
                        
| Worldwide sales | 18,000,000 | Universal Music Japan | 
                             Total 
                                Sales: 18,000,000 
                                Source: Universal Music Japan 
                             | 
                    
Year-end chart performance for PLEASE HAMMER DON'T HURT 'EM
| Chart 1990 | Rank | Sales | 
   Australian Albums (ARIA)  | 
                                      49 | >35,000 | 
   Canadian Albums (RPM)  | 
                                      3 | |
   Dutch Albums (Album Top 100)  | 
                                      71 | |
   European Albums (Music & Media)  | 
                                      60 | |
   German Albums (Offizielle Top 100)  | 
                                      93 | |
   New Zealand Albums (RMNZ)  | 
                                      6 | |
   Swiss Albums (Schweizer Hitparade)  | 
                                      29 | |
   UK Albums  | 
                                      47 | |
   UK Artist Albums  | 
                                      36 | |
   US Albums (Billboard 200)  | 
                                      5 | |
| Chart 1991 | Rank | Sales | 
   Canadian Albums (RPM)  | 
                                      23 | |
   Dutch Albums (Album Top 100)  | 
                                      54 | |
   European Albums (Music & Media)  | 
                                      31 | |
   German Albums (Offizielle Top 100)  | 
                                      37 | |
   Japanese Albums (Oricon)  | 
                                      32 | 469,930 | 
   New Zealand Albums (RMNZ)  | 
                                      37 | |
   UK Albums  | 
                                      46 | |
   US Albums (Billboard 200)  | 
                                      7 | 


 Australia
 Austria
 Canada
 France
 Germany
 Japan
 Netherlands
 New Zealand
 Spain
 Switzerland
 United Kingdom
 United States